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Search: ROM[^A-Za-z]
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Topics in Library web:
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Changed: now 16:22 GMT
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Changed by:
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02D011F0-1500
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05 Feb 2006 - 22:24 - r1.4
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Home.synoptic
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to convert non-vtec "11F0" boards from non-vtec to vtec, add: In top left quadrant: C60 1uF, 35v electrolytic (tantalum?) capacitor J10 0 Ohm jumper wire Q101 A143 ...
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02D01720-1500
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14 Mar 2007 - 05:11 - r1.5
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Home.defensio
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To convert a "1720" board from non-vtec to vtec add the following parts: Required: Q26: C2785 ( note: I used a C144 and it worked fine NPN switching transistor) C60 ...
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02D01980-1500
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02 Dec 2006 - 23:22 - r1.4
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Home.enigma06
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Editor's note: the small list does not appear to have the required parts for the IABs Author: eg6ajk Date: 05-24-03 15:10 my parts list seems to be alot smaller: ...
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1WireVtec
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20 Feb 2004 - 00:37 - NEW
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Home.blundar
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The 1-wire vtec codebase is a ROM for the OBD0MPFI ECU s that allows the AutomaticTransmissionLockupSolenoid to be used to control vtec engagement. JasonParker came ...
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203_AC
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08 Nov 2004 - 14:46 - NEW
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Home.mind-eracer
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Author: PRCIVIC Date: 05-28-03 21:46 Ok I have commented the AC routine posted for the benefits of those with no assembly knowlege. And yes anyone may comment if i ...
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27C256
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29 Apr 2004 - 02:54 - r1.2
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Home.rschoener
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The 27C256 is the basic EPROM commonly used to chip ECUs. It is a 32k byte (256kbit) chip. 27C256 chips are generally either OTP or UV-Erase . Beware tho! Most honda ...
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27SF256
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09 Mar 2004 - 19:29 - r1.2
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Home.blundar
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This is supposed to be an electrically-erasable replacement for 27C256 . http://www.sst.com/downloads/datasheet/S71152.pdf SST Datasheet (PDF) These can be purchased ...
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28C256
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12 Apr 2004 - 20:42 - NEW
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Home.tungsten2k
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28C256 EEPROM s will work in ECUs, but require pins to be moved around/altered due to them being a different pinout than either 27C256 or 29C256 chips. http://rocky ...
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29C010
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18 Nov 2006 - 17:46 - NEW
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Home.longbow
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The http://www.atmel.com ATMEL AT29C010 chip is a FLASH ROM chip with 1Mbit(~128kb) of memory. It can be found in old Pentium I II computer motherbords. This chip ...
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29C256
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25 Nov 2004 - 12:45 - NEW
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Home.ltdannear
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the http://www.atmel.com ATMEL AT29C256 chip is the de facto FLASH ROM chip in use. It uses a 5V programming voltage, can be erased repeatedly electronically. They ...
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74HC373
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05 Mar 2004 - 17:40 - NEW
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Home.blundar
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The 74HC373 is an octal Latch chip. It Latch Latch es 8 bits of data, and is usally used when adding an external rom to a MCU
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91PM6TargetIdle
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19 Feb 2004 - 23:25 - NEW
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Home.blundar
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Author: xtensive Date: 01-04-03 20:47 Ok, here's what I found: That whole area is data tables. The routine that calls the idle value is @279A for the pm6. The stock ...
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ADC
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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Analog to Digital Converter: An integrated circuit (IC) which converts an analog signal to a digital representation. As an example let's consider an 8-bit ADC with ...
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ASM662
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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ASM662 is an Oki 66201/66207/66301 assembler/disassembler which is still a work in progress. It's released under the BSD license, so you may use the code for anything ...
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AccordAutoOBD2-OBD1
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13 Oct 2005 - 22:25 - r1.4
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Home.drdisco69
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Information provided by Bird333 First off my disclaimer (gotta have one right ). I, nor anyone else is responsible (except you) if you screw up your car, house, life ...
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AddAKnockSensor
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24 Jun 2005 - 03:02 - r1.2
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Home.street_kings
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To add a Knock Sensor to a P75 here is what I did: 1. Remove a knock board from a JDM p30 2. Move the connector strip from prot "A" to port "B" 3. Remove R12 4. Add ...
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AddBoost
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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crome scripts work on p06, p28, p30 (edm, jdm, usdm), p72; it recognizes the rom as do most other Rom editors. Not all scripts work on all ROMs. Boost is a notable ...
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AddIABToP28
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29 Jul 2006 - 05:20 - r1.9
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Home.M2Prelude
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Author: Deluded Date: 07-24-03 23:44 READ CAREFULLY: The procedure to add IABs is different depending on how they are wired. One IAB wire will always run to the ECU ...
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AddKnockToP30G00
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26 Jan 2006 - 05:05 - NEW
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Home.synoptic
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On 1720 or 11f0 I've: remove R140, R141 10k add R107, R115, R116 220R I also add (they may not be essential): C94 4u7 16v tant Q20 a143 On 1550-150x: remove R78 ...
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AirFuelRatio
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12 Jul 2004 - 15:45 - r1.2
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Home.blundar
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The ratio of the mass of air taken in my an engine to the mass of fuel. 14.7:1 is chemically ideal in order to get the greatest efficiency from every gallon of fuel ...
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AutoToManual
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09 Jan 2007 - 08:17 - r1.4
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Home.defensio
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Most automatic ECUs can be converted to a 5spd rather easily. Going the other way often involves adding more components. At this time, it appears that the conversion ...
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BasicConcepts
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19 Jan 2006 - 07:34 - r1.3
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Home.markolson
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Vocab: ECU Engine Control Unit OBD0 the first unofficial generation of honda engine electronics OBD1 the second unofficial generation of honda engine electronics ...
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BegginersFAQ
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27 Feb 2007 - 18:13 - r1.2
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Home.sanimalp
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(blundar sez: most of these were moved over from the old FAQ) If you are a beginner, and you have a question that you think other people will have too, please add ...
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BlueLoctite
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04 Mar 2004 - 00:45 - NEW
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Home.blundar
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Blue Loc-Tite is like a girlfriend... your stuck with her, but you can get rid of her if you want to. Unlike RedLoctite. You put Blue Loc-Tite on a bolt that is prone ...
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CEL
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22 Dec 2005 - 08:58 - r1.3
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Home.qwertyville
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Check Engine Light This indicator (usually on the dash) comes on to indicate that the ECU thinks something is wrong. The ECU will usually indicate an error code by ...
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CheckSum
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12 Jul 2004 - 14:08 - r1.3
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Home.synoptic
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A Checksum is a very basic form of error checking. A checksum is calculated by adding the values of a ROM together, without any form of carry or overflow checking ...
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ChipMax
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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Entry level professional universal device programmer with a parallel port interface. It is manufactured by http://www.eetools.com EE Tools . Retail is close to $300 ...
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ChippingAn88-89ECU
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21 Sep 2005 - 08:24 - r1.8
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Home.1net
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OBD0MPFI ECUs have two main designs that affect how the ECU is chipped. 90-91 ECU s have an external 38256 (same as 27C256 ) ROM . This can be removed and replaced ...
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ChippingJDMP30
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12 Jan 2007 - 03:32 - r1.5
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Home.coupe-r
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You will need bridge J1 on the back of the ECU. Add C49 C50 and C92 on back. C91 is on the front by the latch C49 C50 .004UF (Digikey part number 399-1230-1-nd ) ...
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ChippingOBD0PM6
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05 Nov 2006 - 15:41 - r1.2
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Home.synoptic
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OBD0 ECU Chipping If you have a OBD0 ECU, chipping the ECU might not be straightforward. Almost ALL 90-91 PM6, PM7, PR4 and PP5(with catalytic converter) ECUs had ...
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ChippingOBD2
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31 Mar 2004 - 19:00 - NEW
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Home.blundar
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How to chip a ODB2 ECU by Doc (edited by Dave) Table of Contents: TOC Introduction Contrary to popular belief, it is possible to chip a ODB2 ECU. It's not cheap like ...
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ChipsForECUs
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29 Mar 2004 - 21:20 - r1.2
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Home.blundar
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all 90-95 (most OBD0 and all OBD1 ) honda ECUs require a 32k byte (256kbit) ROM . Some common chips used by the DIY-chipping scene are the 27C256 , AT 29C256 and 27SF256 ...
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ClampingDiode
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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This is a diode to prevent a spike from an engine component (ike a solenoid) from damaging circuitry. In most cases a 3 amp clamping diode is more than adaquate. The ...
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CommonTEProblems
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27 Jan 2007 - 00:41 - r1.5
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Jared Karagen?
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The following are some problems that I see people running into fairly often when using TurboEdit. If I've forgotten any, please add both the problem and the solution ...
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CromeFAQ
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04 Aug 2005 - 02:22 - r1.4
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Home.m2prelude
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Why is Crome password protected? Crome is FREE software that without the hard work of many people wouldn't even be here. To give credit to its contributors, I (John ...
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CromeROMEditor
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06 Sep 2005 - 04:03 - r1.3
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Home.drdisco69
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Crome is ROMEditor that JohnCui wrote. Its main feature that differentiates itself from other ROMEditor s is that it supports the use of JavaScript to control it and ...
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CromeScript
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31 Mar 2007 - 03:08 - r1.3
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Home.racingsky
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Crome has a powerful scripting language. There are many functions you can call to do things. It would be good to document them here. 3/5/04 see below for additional ...
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D16Z6-4G-swapnotes
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19 Feb 2004 - 23:25 - NEW
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Home.blundar
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Brief remarks on installing the D16Z6 itself Installing a Z6 is pretty close to dropping a D16A6 (a.k.a. A6) engine in. Alterations that need to be made include: ...
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DAC
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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Digital to Analog Converter. the process of taking a digital value and converting it to an analog signal of some variety. We'll use an 8-bit DAC using a 5.00V reference ...
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DebuggingDataLogging
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03 Jan 2005 - 05:58 - r1.4
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Home.markolson
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Thanks to ltdannear for lots of help in getting this to work. The following is a guideline for how to debug the datalogging circuit you have added to your ECU. This ...
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DesolderingTips
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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Some basic wisdom from my time with the desoldering tools: #DO NOT USE THE SUCTION ALL THE TIME #BE PATIENT. You need to wait for the solder to melt all the way through ...
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DesolderingTool
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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there are several common styles of desoldering tools commonly available that allow the use of a regular SolderingIron for desoldering: Plunger-style tools use a spring ...
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DifferenceUsCanPM6
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03 Mar 2004 - 03:19 - r1.2
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Home.tatou100
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Here's the difference beetween US and Canadian PM6 First you have to know that US Civic/CRX have a external ElectricalLoadDetector or ELD. It's located in the fuse ...
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DigiKey
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17 Feb 2004 - 18:56 - NEW
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ROM
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http://www.digikey.com DigiKey is one of the larger and more convenient mail order electronic part suppliers in the USA.
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DocECUSchool
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05 Mar 2004 - 17:40 - NEW
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Home.blundar
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From post: Doc Teaches ECU School A while ago, Doc and I had a conversation on IM that turned into a very informative post. It is now archived here for your reading ...
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DualRoms
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03 Oct 2005 - 14:07 - NEW
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Home.1net
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Honda RomMaps are 256 kilobits (32kbytes) Use a 2xC512 (512kbit/64kbyte) EPROM Make one rom image with two full RomMaps one beginning at offset 00h one beginning at ...
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DualTables
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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Dual tables simply refers to there being two sets of fuel/timing information in a single ROM. Vtec is an example of this there is one set of tuning information for ...
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ECU-CodeCompatibility
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20 Feb 2004 - 00:37 - NEW
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Home.blundar
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Most honda ECUs can run code from other ECUs of a similar age, and similar family. Civics and Integras generally can share code. Preludes and Accords are certainly ...
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ECUHardware
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06 Feb 2007 - 01:40 - r1.4
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Jared Karagen?
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This page describes how the hardware in an ECU works, and fun things you can do with it. If you are just wanting to learn how to chip your ECU , you should look at ...
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ECUHardwareMods
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23 Feb 2006 - 07:38 - r1.12
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Home.sonictronic
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It is possible to do may modifications to the hardware of a Stock ECU. You can convert AutoToManual . You can convert OneWireTo4WireO2Sensor if starting with a P08 ...
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EPROM
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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Electrically Programmable ROM ROM that can be programmed using a RomBurner The most common types pin-compatible with most OBD0 and OBD1 Honda ECU s are the 27C256 ...
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EasyRtpInstall
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30 Jul 2004 - 16:01 - r1.4
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Lego Z81
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Please Note: These installation instructions are preliminary. Please double check the instructions and report any errors. Once you've completed the construction of ...
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EasyRtpV10
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22 Dec 2004 - 20:36 - r1.10
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Home.synoptic
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This page is a construction design for the Easy-RTP V1.0 board. This is the single sided design for a DS1230 style 28 pin DIP NVSRAM. You can find the eagle design ...
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EcuChippingWirelist
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22 Nov 2005 - 23:59 - r1.4
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Home.markolson
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This topic is intended to help you debug soldering problems when chipping an ECU. The first section is generic advice for debuggiing all ECUs. The remaining sections ...
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EcuConnections
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01 Nov 2006 - 18:43 - r1.4
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Home.almskidd
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You can donate any ECU WireHarness setup here. Write the ECU type, engine, cam, XDM and carmodel and make a link to a thread at Harnesses and Conversions in the Approaces ...
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EcuDefinitionCodes
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02 Apr 2007 - 17:06 - r1.84
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Home.hackish
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Honda ECU definition codes These id codes are the last 3 digits printed directly on the MCU after the model number (e.g. M66207-251 the "251" portion will be a much ...
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EcuFamilies
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29 Jan 2007 - 15:49 - r1.23
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Home.1net
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ECU Families: TOC "Pre-OBD" Early fuel injection designs PG7 : 86-87 USDM / JDM Integra (D16A1 VacuumAdvance) PE7 : 85-87 EDM / USDM Civic/CRX Si (EW3/EW4 VacuumAdvance ...
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EcuTuning
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19 Feb 2005 - 21:45 - r1.2
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Home.markolson
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. Author: blundar Date: 08-12-03 14:12 EGT (or ExhaustGasTempSensor) and WideBandO2 used in combination with DataLogging can be a really powerful tool. Timing changes ...
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ElectronicPartSupplier
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22 Jun 2004 - 02:15 - NEW
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Home.phiz
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a handful of major electronic part suppliers: http://www.digikey.com Digikey good in-stock availability, great catalog, good website. http://www.arrow.com Arrow ...
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EngineCoolantTemperature
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05 Mar 2004 - 19:46 - NEW
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Home.blundar
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The EngineCoolantTemperature (ECT) sensor measures how warm (or cool) coolant passing through the motor is. Ed Gibson had this to say about it: 'Temperature lookup ...
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EngineSim
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27 Jan 2007 - 14:57 - r1.4
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Home.b16a2
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The Engine Simulator is a device designed to simulate a running motor to aid in ECU development. Some links: (None of which work as of 1.7.2005, and certainly way ...
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Epromer5
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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A perpetual favorite among the GM crowd, the Epromer5 is a solid, tried and true product. As of October 10, 2003, prices ranged from $94.50 to $114.50 depending on ...
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Eprommer3.3
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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The http://www.batronix.com/electronic/circuits/eeprommer.shtml Eprommer 3.3 has long been a favorite of the DIY community. The burner is simple to construct, not ...
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Eprommer5
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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A perpetual favorite among the GM crowd, the Epromer5 is a solid, tried and true product. As of October 10, 2003, prices ranged from $94.50 to $114.50 depending on ...
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FuelCut
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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A Fuel Cut is when fuel to the motor is shut off completely. This is usually done as part of a RevLimiter, LaunchControl or BoostCut routine. FuelCut RevLimiter s ...
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FuelPressure
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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You can increase the amount of fuel delivered by increasing your static FuelPressure. High FuelPressure may however slow the injector from opening, sacrificing crisp ...
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GoodStyle
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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"Young writers often suppose that style is a garnish for the meat of prose, a sauce by which a dull dish is made palatable. Style has no such separate entity; it is ...
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HardwareForOneWireVtec
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23 Sep 2006 - 17:08 - r1.3
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Home.tatou100
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First, let me give credit to JasonParker for coming up with the parts list; I finally laid my hands on a PS9 to get the part values. To mod the PM6 (and likely similar ...
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HexFile
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25 Mar 2004 - 20:13 - NEW
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Home.sevedd
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A "hex" file is a file encoded in Intel Hex format. The Intel HEX file is an ASCII text file with lines of text that follow the Intel HEX file format. Each line in ...
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HiResP72
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17 Feb 2004 - 09:26 - NEW
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Home.tungsten2k
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HiResP72 is a custom P72 based ROM that has been modified to have the same size fuel and ignition lookup tables as used in the P28 so that tables can be copied/pasted ...
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HondaErrorCodes
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18 Nov 2004 - 21:11 - NEW
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Home.blundar
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Ripped from http://www.hybridgarage.com Honda ECU Trouble Codes by various contributors 1 Accord Civic CRV CRX Del Sol Odyssey Prelude 85-98 86-98 97-98 85-91 93-97 ...
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HowDoesDataLoggingWork
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24 Oct 2005 - 06:50 - NEW
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Home.markolson
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There are a number of programs that enable you to log data about how your engine is working by reading information out of the ECU. For my OBD1 ECUs, I use CROME Pro ...
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IdealGasLaw
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26 May 2004 - 18:14 - NEW
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Home.blundar
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the Ideal Gas Law is an equation you may or may not remember from high school chemistry. PV nRT P Pressure (must be an AbsolutePressure scale) V Volume n number of ...
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InjectorSizing
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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Fuel Injectors must be sized to provide adequate fuel flow at maximum HP/RPM/Boost, while being small enough to provide low-enough flow during idle. Most PGM-FI systems ...
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InterWiki
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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This wiki supports InterWiki links in a style copied from UseMod: wiki. Links to pages in other wikis can be made without having to know or type the full URLs, for ...
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InterWikiMap
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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The InterWiki map used on this wiki is listed below. The map is taken from the text in the verbatim block below. (But this only works if this page is locked.) AbbeNormal ...
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IntroductionToECUChipping
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12 May 2006 - 09:00 - r1.10
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Home.hondainfo
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Introduction to ECU Chipping by David Blundell Please feel free to link to this article, but "mirroring" is highly discouraged, as you will not automatically receive ...
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KnockBoard
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12 Apr 2004 - 04:07 - NEW
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Home.tekphobia
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the knock board is a circuit board (seperate from main ECU PCB) mounted in the top-right hand corner of DOHC Vtec ECU s having a KnockSensor. The KnockBoard is responsible ...
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KnockSensor
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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KnockSensor s can be found on DOHC Vtec motors, such as the B16, B18C and H22. Also on SOHC Vtec OBD2 motors. A knock sensor is basically a special microphone that ...
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KurtsOBD0-OBD1
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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First attempt to post this OBD1 conversion write-up on wiki.pgmfi.org. Some sections need revision still and they are in italics/bold print. Please send any suggestions ...
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LabelDecode
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19 Sep 2004 - 19:21 - r1.3
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Home.blundar
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You can find out a lot from reading the label on a OBD1 ECU. This applies mainly to the Civic ECUs... dunno bount the integra ones. 37820-ABC-XYZ Digits Meaning ABC ...
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Latch
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05 Mar 2004 - 17:42 - NEW
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Home.blundar
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to latch something is to hold or preserve its state latches, like the 74HC373 are logic gates that hold the state of IO lines.
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LimpMode
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04 Mar 2004 - 00:45 - NEW
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Home.blundar
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Aka "Limp Home Mode" LimpMode is the mode of operation when the ECU's CEL is lit solid red indicating a major malfunction. It is intended to get the car home, and ...
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MCU
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30 Jul 2004 - 19:19 - NEW
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Lego Z81
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MCU microcontroller A small CPU sometimes with RAM , ROM , EPROM , EEPROM , FLASH , or IO facilities onboard. Documentation on MCU's inside Honda ECU 's is http:/ ...
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ManualChecksum
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19 Feb 2004 - 23:25 - NEW
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Home.blundar
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There are two ways to fix a checksum error. The first is to change the program of the ROM in such a way that the checksum routine is disabled / removed. Learn to code ...
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MapSensor
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13 Sep 2006 - 16:33 - r1.4
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Turbo EF9?
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The Manifold Absolute Pressure Sensor (MapSensor) tells the ECU what the absolute pressure in the intake manifold is (relative to AbsoluteVacuum). This allows the ...
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MapSensorEquation
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04 Mar 2005 - 22:43 - r1.2
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Home.markolson
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Modeling the MapSensor voltage output into a usable number. (From the Helm Manual:) http://www.pgmfi.org/twiki/pub/Library/MapSensor/honda stock map volt.jpg y mx ...
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MassAirFlow
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26 May 2004 - 17:42 - NEW
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Home.blundar
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A Mass Air Flow engine managment system uses a mass-air-flow sensor (MafSensor) which is placed in the intake tract to directly measure the mass of air entering the ...
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McuReaders
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05 Mar 2004 - 17:46 - r1.2
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Home.blundar
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All of the MCU readers described here take advantage of a design flaw of oki MCUs (and the design flaw is present on all MCUs we have seen to date). MCUs can use both ...
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NVSRAM
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23 Mar 2006 - 19:36 - r1.3
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Home.Nuno Euro VTi?
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NVSRAM Non Volatile SRAM fast, byte addressible, byte write, RAM that retains its contents after power is lost. NVSRAM usually takes one of several forms: Battery ...
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NicoAnalyze
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18 Jul 2005 - 02:10 - r1.2
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Home.roy
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Author: XDEep first thanks to nico for a great tool. the mishap im talking about is when you drag the scrollbar up and down, the cells get pushed around. so even though ...
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NokiaCableDatalogging
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15 Nov 2005 - 22:34 - r1.3
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Home.nate
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Jim Truett says: (original http://forum.pgmfi.org/viewtopic.php?t 1663) I have found a very good adapter to link the TTL output from an ECU to a Laptop or PC with ...
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O2InputMod
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05 Jun 2006 - 17:48 - r1.3
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Home.almskidd
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See http://www.marklamond.co.uk/tech-honda/pgm-fi/o2-input/o2-input.htm for details this lets you modify you ecu for 0-5v input. The ADC is converts the analogue voltage ...
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OBD
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31 Mar 2007 - 03:45 - r1.2
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Home.racingsky
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On Board Diagnostics General Overview In an effort to reduce vehicle emissions, the California Air Resource Board (CARB) required that an on board diagnostic system ...
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OBD0
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07 Apr 2006 - 03:20 - r1.6
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Home.carotman
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"OBD0" is not an official standard like OBD2 . It is most usually used to refer to MPFI ECUs made from 88-91 with ElectronicAdvanceDistributors found on OBD0MPFI ...
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OBD0CodeCompatibility
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12 Jul 2005 - 19:25 - r1.3
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Home.4G vtec
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Can you run code from one OBD0MPFI ECU in another? The short answer to this is yes. The following has been tried before and is known to work successfully: PM6 in PR4 ...
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OBD0ConversionFormula
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12 Apr 2004 - 02:09 - NEW
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Home.SYnoptic
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Describe OBD0ConversionFormula here. OBD016BitRPM is used for revlimiters, target idle and most other 16bit RPM values in the ROM. OBD0VSS is used to convert the ...
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OBD0ConversionFormulae
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12 Apr 2004 - 02:06 - NEW
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Home.SYnoptic
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Describe OBD0ConversionFormula here. OBD016BitRPM is used for revlimiters, target idle and most other 16bit RPM values in the ROM. OBD0VSS is used to convert the values ...
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OBD0ConversionFormulas
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12 Apr 2004 - 02:08 - NEW
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Home.SYnoptic
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Describe OBD0ConversionFormula here. OBD016BitRPM is used for revlimiters, target idle and most other 16bit RPM values in the ROM. OBD0VSS is used to convert the ...
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OBD0InterChipCommunication
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17 Feb 2004 - 09:44 - NEW
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Home.tungsten2k
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There are several chips connected to the Oki83C154 or Oki80C154 MCU : NEC UPD7004C ADC 5128XRAM external SRAM Oki6260A IO controller 38256 EPROM (32k) in some cases ...
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OBD0MPFI
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30 Jan 2006 - 07:24 - r1.5
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Home.carotman
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There is a very distinct family of ECUs found in 88-91ish OBD0 hondas. The main characteristics of this family: Oki80C154 or Oki83C154 MCUs that are essentially Intel8051 ...
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OBD0Oki83C154Reader
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05 Mar 2004 - 17:56 - NEW
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Home.blundar
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Dave says: Well, borrowing an idea from Nico-HRED/Doc used in the 66Ks, here is a program that should read out the contents of a 83C154 MCU. It assumes that you have ...
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OBD0PM6PM7RAM_Locations
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17 Feb 2004 - 09:37 - NEW
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Home.tungsten2k
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;:Bytes: RAM Alt. Notes 02C.1 bit 060h set if MAP is too high 030h CPL of 031h XRAM-1004h 031h ECT 032h IAT XRAM-1005h 033h CPL of IAT } 034h barometer? 036h MAP 037h ...
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OBD0PR4
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20 Feb 2004 - 00:37 - NEW
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Home.blundar
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OBD0 PR4 ECUs from the USDM (and JDM?) 1.8L B18A-powered Integra have some quirks: There are two versions of the ECU, each using the same circuit board. One uses ...
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OBD0VtecECUs
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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The OBD0 VTEC ECU's are the PR3 and the PW0. These ECUs ran the B16A1 in OBD0 cars from 89-91. There is no code interchangeability between the two ECU's. They use ...
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OBD1
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13 Dec 2006 - 15:40 - r1.5
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Home.lithiumus
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" OBD 1" is generally used to refer to honda engine electronics from 92-95. Accords/Preludes used OBD1 connectors as early as 1990. This is not an official standard ...
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OBD1CN2
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31 Oct 2005 - 01:53 - r1.7
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Home.fred
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CN2 is the connector to the serial port on an OBD1 ECU. Here's the pinout of the Dataconnector IN a Honda ECU: 1: GND 2: RX (send Data from the PC to the ECU) 3: 5 ...
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OBD1CivicIntegraECUs
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21 Feb 2006 - 08:00 - NEW
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Home.dj_spark
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Almost all OBD1 ECU s used in 92-95 Civics and integras (but NOT preludes, accords, legends, etc.) are more or less electrically compatible. With minor tweaks, all ...
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OBD1CodeCompatibility
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22 Jun 2004 - 15:34 - NEW
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Home.blundar
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OBD1CivicIntegra ECU s are a common hardware platform. What this means is that you can (with minor modifications) run essentially any code on any ECU in the family ...
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OBD1J12
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05 Mar 2004 - 19:26 - NEW
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Home.blundar
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In its stock configuration, an OBD1 car has a diagnostic connector under the dash which is wired to the ECU's serial port. The ECU's serial port is also wired to OBD1CN2 ...
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OBD1Oki66207Reader-DIP64
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05 Mar 2004 - 18:16 - NEW
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Home.blundar
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First of all i'll thank Nico-HRED again for the info he posts in the general forum about the "66P507 Readout". I adapted the idea and simplified it, so everyone of ...
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OBD1Oki66207Reader-PLCC68
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08 Jun 2006 - 00:20 - r1.2
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Home.synoptic
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After doing Doc's mod to read out the stock rom from a Australian P30 ecu with the 66207 in a 64 pin dip config, I started thinking that somewhere on the web I saw ...
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OBD1_8bitFuel
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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Given table value ''v'' and multiplier value ''m'', the fuel value as seen in a ROM editor is: Fuel(''v'',''m'') ''v m''/4 The result is presumably proportional to ...
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OBD1_8bitMBar
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21 May 2005 - 03:50 - NEW
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Home.bigwig
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Assuming that the stock map sensor's maximum reading is 1764 Mbar, the formula to convert MAP byte value is ((1764 / 255) OBD1 8bitMBar / 2). When the rom's map value ...
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OBD2
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13 Dec 2006 - 16:03 - r1.4
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Home.lithiumus
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OBD 2 On Board Diagnostics 2 A standard in the US established in 1996 specifying standard methods for accessing vehicle engine computers, emissions controls and ...
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OBD2K
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31 Mar 2004 - 18:25 - NEW
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Home.blundar
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OBD2K is something I made up to differentiate the 01+ ECUs that run K-series motors from OBD2A and OBD2B ECUs.
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OBD2P5MAutoManual
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07 May 2005 - 06:06 - NEW
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Home.Jim Truett
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This is a very simple conversion. Move the SMD 0 ohm resistor from location RP13 on the bottom of the PCB to location RP14 on the top of the PCB. The 0 ohm SMD resistor ...
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Oki6260A
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02 Mar 2005 - 13:31 - r1.5
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Home.l3st4rd
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The Oki 6260A was manufactured for Honda by Oki. J. Wong has this to say: "I was just cleaning out my cube and just happened to run across a piece of paper with 6260A ...
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Oki80C154
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20 Feb 2004 - 00:37 - NEW
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Home.blundar
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MCU used in OBD0MPFI ECUs that has zero internal code memory. requires the use of an external EPROM It is mostly 8051 compatible, and features a third timer like ...
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Oki83C154
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05 Mar 2004 - 17:44 - r1.2
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Home.blundar
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MCU used in OBD0MPFI ECU s that has 16k on-chip code memory. Usually copy protected, but there are McuReaders. It is mostly 8051 compatible, and features a third ...
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P05
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28 Dec 2005 - 06:36 - r1.2
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Home.4g vtec
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P05 92-95 OBD1 Civic CX (D15B8) The P05 ECU came with the D15 SOHC non-vtec motor with close-coupled cat and a 1-wire O2 sensor in the 92-95 Civic CX. Basically an ...
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P07
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26 Jun 2005 - 05:29 - r1.3
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Home.markese
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P07 92-95 OBD1 Civic VX (D15Z1) Unique in that it has two 66207 processors (one presumably for the wideband O2) Note: 303 P07 Code is very similar to 304 P28-A01 Code ...
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P0A
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18 May 2006 - 18:59 - r1.3
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Home.kabuki
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P0A 94-95 OBD1 Accord EX attached pic is a 94 P0A-A51 PCB is IPT 02D010B0-1502 The data below has been copied over from the P13 page as a place holder. Only a few ...
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P13
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19 Sep 2006 - 17:13 - r1.15
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Home.carotman
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P13 93-95 OBD1 Prelude Vtec (H22A DOHC Vtec) RAM Location Bytes Description Notes 00A4 1 MAP sensor 00AB 1 Tps Sensor OBD1 8bitTPS 00AE 2 RPM in 16bit form 00D9 1 ...
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P13JDM
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17 Feb 2004 - 09:27 - NEW
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Home.tungsten2k
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RAM Location Bytes Description Notes ROM Location Bytes Description Notes 2EC1 1 Rev Limit Desired RPM/45.18 some 8-bit decimal value. change to Hex and put in 2EC1 ...
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P14
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26 Jan 2007 - 23:58 - r1.3
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Jared Karagen?
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P14 93-95 OBD1 Prelude Si (non Vtec H23A) There are at least 2 versions of this ECU: One with and one without knock sensor. The ECUs with a knock board have R118 ...
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P14ToP13
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28 Apr 2005 - 05:11 - r1.2
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Home.speed_of_bokchoy
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How to convert an OBD1 P14 into a OBD1 P13 by Andrew Congdon I've now suceeded in converting a P14 to P13. Here's what I added to a P14-Q00 to make it electrically ...
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P1J
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29 Jan 2007 - 16:14 - NEW
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Home.1net
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P1J and P1K come from 96-00 UK civics with D14 engines. Despite the years, those are OBDI ECUs and seem to be easyly convertable for vtec Sorry for the bad images ...
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P1K
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29 Jan 2007 - 16:06 - NEW
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Home.1net
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P1J and P1K come from 96-00 UK civics with D14 engines. Despite the years, those are OBDI ECUs and seem to be easyly convertable for vtec Those OBDI P1J or P1K ECUs ...
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P28
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26 Jul 2005 - 21:54 - r1.8
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Home.-anton-
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P28 92-95 OBD1 Civic Si/Ex and Del Sol(SOHC VTEC D16Z6) scan of auto: http://pgmfi.org/resources/FAQ/scans/P28autoback.jpg scan of auto (thanks turboef9): http:/ ...
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P30
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23 Mar 2007 - 11:36 - r1.27
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Home.johncui
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P30 (Rom #203) P30-G01 95 Uk Civic Vti Hatch, Big case one. Uses CPU's internal rom, but has space for external rom. Ran code from rom above OK but needed knock sensor ...
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P72
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02 Apr 2006 - 02:18 - r1.18
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Home.91crxsi
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ROM addresses and their functions specific to the stock Honda P72 used in: 94-95 OBD1 Integra GSR (1.8L B18C? DOHC Vtec) 96-00 OBD2 Integra GSR Picture of OBD1 P72 ...
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P72DebugMode
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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Similar to P30DebugMode, enabling/disabling this option will enable/disable several other features. Here's the proof: LCB A, 0547eh ; 53A7 0 02 08 909D7E54 STB A, ...
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PE7
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19 Feb 2004 - 22:55 - r1.3
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Home.blundar
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the PE7 came on 85-87 EDM/USDM Civic/CRX Si (EW3/EW4 Vacuum advance) cars. Thanks to Mark Lamond for the scans. ATTACHURL /PE7-682-87 Civic Si.bin PE7-682-87 Civic ...
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PH3
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30 Jan 2006 - 07:20 - NEW
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Home.carotman
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THe 88-89 Accord OBD-0 B20A ECU uses an Electronic Advance distributor. It has an External 27c256 ROM and is oki 80c154 based This ECU is very similar to the PK2 ECU ...
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PJ0
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29 Dec 2006 - 20:25 - r1.3
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Home.carotman
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The A20A 86-89 Accord/Prelude PJ0 ECU had many revisions in different countries. Some of them will lack an O2 sensor or EGR control. However, they all use a vacuum ...
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PK2
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18 Oct 2006 - 08:41 - r1.5
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Home.chen
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Prelude OBD-0 B20A ECU. Electronic Advance. External 27c256 ROM. oki 83c154 based pk-2 ecu photo.: I posted the Options Close-up for the PK2-6640 manual B20A ECU. ...
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PM5
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08 Jul 2005 - 14:52 - r1.3
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Home.1net
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PM5 88-91 Civic base model/CRX DX (DPFI D15b) There were two distinct styles of this ECU. One features an 83C154 MCU, one features a 66201 MCU. Presumably 88-89 vs ...
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PM6
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11 Apr 2005 - 22:08 - r1.3
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Home.drdisco69
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The PM6 came in 88-91 USDM D16A6 powered Civic and CRX Si. The PM6 is a major development platform. See the 8XC154 Dev Forum for current happenings. ATTACHURL /PM6 ...
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PM6Future
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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The PM6 Future code module is available from the PGMFI SourceForge page. Currently, DaveBlundell, Michael (hackish) and Chris Donahue appear to be the most active ...
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PM7
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25 Mar 2006 - 22:12 - r1.4
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Home.Orion
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The PM7 ECU was used (mainly) in 88-91 DOHC ZC motors in Europe and Japan. PM7 code is very similar to PM6 code, and the code from one ECU can be run on the other ...
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PM9
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17 Jun 2004 - 04:28 - r1.4
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Home.warrick
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Essentially a PM5 The PM5 PM9 are essentially the same ECU. I think one may have been for the 4 speed and one the 5 speed, but I'm not sure. (blundar) The PM9 that ...
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PP5
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12 Mar 2005 - 01:08 - r1.6
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Home.crex
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PP5 : 90-93 (??) UK Rover 216 Cabrio Rover (UK) had an agreement with honda where honda engines (ZC, most notably) ended up in Rover cars. They continued to use OBD0 ...
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PartsForECUs
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14 Apr 2007 - 17:07 - r1.13
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Home.thc07
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Value Description Board Locations Used for Notes DigiKey # Digikey Price 22pf Cap Ceramic Disk C75 , C89 , C72 , C74 1330ph-nd 0.072 .1uf Cap Ceramic Disk C51 , C52 ...
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PiggyBack
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07 Apr 2005 - 21:24 - NEW
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Home.blundar
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A PiggyBack controller is a device that "piggybacks" on top of the ECU. Piggybacks intercept signals coming from the engine and alter them before they reach the ECU ...
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PreIgnition
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03 Mar 2005 - 21:43 - NEW
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Home.blundar
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Pre Ignition is a bad thing. It is also frequently referred to as "knocking" because of the sound it makes at low intensities. It is also frequently called "detonation ...
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PreludeAccord
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16 May 2005 - 14:26 - r1.2
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Home.sloopy
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OK, here is what I know about these ECUs. The PT6-A51 I have here has a 66911 MCU and uses an external 256k PROM. I got an ECU out of a 1994 Prelude SI with a 1.6 ...
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ProposedDataloggingProtocol
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20 Feb 2004 - 00:37 - NEW
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Home.blundar
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This is a working draft of a proposed protocol to replace the stock serial interrupt handler. It is intended to be cross platform (i.e. both OBD0MPFI ECUs and OBD1CivicIntegraECUs ...
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RM11
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26 Jul 2005 - 18:05 - NEW
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Home.hackish
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Author: Deluded Date: 04-04-03 01:19 RM11 CAN be replaced with 3 resistors: From pin 1 to 2...10k ohm (digikey# 10kebk-nd (200 for US$4.70)) 2 to 3...51K (51kebk-nd ...
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RTPProject
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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blah blah, describe this later. http://www.pgmfi.org/phorum/read.php?f 5 i 3968 t 3968 messageboard link . Here's an incomplete part ordering list so far. Parts list ...
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RedLoctite
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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Red Loc-Tite is like a wife... your stuck with her and to get rid of her, it's gonna cost you a bundle. Unlike BlueLoctite. You put Red Loc-Tite on a bolt that is ...
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ReleaseNotes
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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Jeffs Hacks. New database API. See lib/WikiDB.php and lib/WikiDB/backend.php for the bulk of the documentation on this. The new database can save multiple archived ...
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RemoveAKnockSensor
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21 Sep 2006 - 13:46 - r1.4
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Home.carotman
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Removing the knock detection is simple: Resolder R118 and R119 into R142, 143. Then, Remove R101 (optional). Finally, remove the knock board itself. no knock.jpg: ...
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ReplaceM5128
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27 Feb 2004 - 17:59 - NEW
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Home.synoptic
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This page explain how to replace the current 5128XRAM 2K SRAM chip by a DS1220 NVSRAM for future RTP solution. TOC Brief Explanation The M5128 chip is used to store ...
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RomBurner
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29 Mar 2004 - 21:23 - NEW
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Home.blundar
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A ROM Burner is a device that programs ROM , EPROM , EEPROM , FLASH chips. There are several ROM burners that are worth mentioning for the DIY enthusiast. It does ...
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RomEditor
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20 Feb 2004 - 00:37 - NEW
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Home.blundar
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PGMFI.ORG-made Software software written by forum members to help with ECU tasks ASM662 AndySloane's open source Oki NX8/200 code 66K assember/disassembler suite ...
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RomEmulator
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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ROM Emulators "look" like a ROM to whatever you connect them to. In most cases here, that would normally be an ECU. The most important feature of a RomEmulator compared ...
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RomMaps
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12 Apr 2004 - 02:07 - r1.6
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Home.SYnoptic
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Rom Maps An area to collaborate on all the memory addresses found in ROMs TOC OBD1 Civic and Integra ECUs OBD1CivicIntegraECUs share a lot of features Memory Locations ...
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Rover
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05 Mar 2004 - 18:20 - NEW
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Home.blundar
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Rover is a British car manufacturer that has bought many motors from Honda. The ZC was used in many of the Rover Cabrios, and the Acura V6 found in the Legend showed ...
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RtpTruthTable
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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Peusdotruth table for RTP logic compatible with both OBD0 and OBD1 hardware: (/PSEN) (OBD1) (DS1230AB) A15 /WR /OE /CS /IOWE /WE /OE /CE 0 a b c a 1 b c 1 a X X 1 ...
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SecondGenUsbToSerialConverter
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13 Feb 2005 - 07:53 - r1.6
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Home.markolson
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A company named http://www.elexol.com Elexol makes a second generation serial-to-USB port adapter called the http://info.hobbyengineering.com/specs/USBMOD3.pdf USBMOD3 ...
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SerialAdapter
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22 Jun 2004 - 02:12 - r1.2
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Home.phiz
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All Honda ECUs use 5v TTL signaling for serial communication . In order to connect to an ECU, if the hardware used for DataLogging doesn't support this, you must use ...
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SerialCommunication
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27 May 2005 - 12:39 - NEW
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Home.hondainfo
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Serial communication Serial communication is a popular means of transmitting data between a computer and a peripheral device such as a programmable instrument or ...
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Sim
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28 Jan 2007 - 12:26 - r1.3
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Home.b16a2
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This is a Engine Simulator I build to help me out with hardware Development. Its basicly built into a rack mount computer case and uses a ATX 350W power supply. http ...
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SpeedDensity
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26 May 2004 - 17:39 - NEW
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Home.blundar
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What is a SpeedDensity engine managment scheme? SpeedDensity systems calculate the amount of air entering a motor using sensors that monitor engine operating conditions ...
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TpsSensor
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05 Mar 2004 - 20:03 - r1.2
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Home.blundar
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The TPS or Throttle Position Sensor determines the angle of the ThrottlePlate in the ThrottleBody and depending on other info from the MapSensor, OxygenSensor, and ...
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TroubleshootingSolidCEL
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27 Dec 2004 - 18:16 - r1.2
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Home.markolson
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Solid CELs are arguably one of the easier problems to troubleshoot because there are relatively few things that cause them to happen. A "solid" CEL occurs when there ...
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TurboEdit
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14 Jun 2005 - 09:05 - r1.4
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Home.4thgen91efhatch
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Turbo Edit is JasonParker 's OBD0MPFI ROMEditor . It seems to be picking up where GhettoDyne left off. See http://www.TurboEDIT.org/ or the http://forum.pgmfi.org/viewforum ...
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UPD7004C
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27 Jun 2005 - 10:08 - r1.7
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Home.1net
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The NEC UPD7004C is an ADC chip found in OBD0MPFI ECUs. Documentation on it was very hard to find. :) We looked and googled for months, and then finally I emailed ...
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UV-Erase
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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many chips have a clear glass window in the top of them. If you expose them to short UV (i.e. the kind that causes instant cancer) from a sterlizer lamp or UV-eraser ...
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UberDataFAQ
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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Uberdata FAQ Stupid newbie tard Uberdata FAQ Author: Blake Warner Email: uberteg@cox.net, vertigo118@cox.net Notes: Remember to donate if you use and enjoy this software ...
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UberP72
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17 Feb 2004 - 09:24 - NEW
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Home.tungsten2k
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UberP72 is a any P72 based ROM that has been modified to be used with UberDataERM . Please add only addresses that are specific to this implementation! All standard ...
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UnderstandingMaps
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21 Nov 2005 - 19:26 - r1.2
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Home.ben ogle
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Understanding Fuel and Ignition Maps. Fuel Maps Below around 80 throttle, the ECU uses the oxygen sensor in conjunction with the fuel tables to calculate how much ...
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VehicleSpeedSensor
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27 Sep 2005 - 10:22 - r1.2
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Fast Hatch?
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The Vehicle Speed Sensor ( VSS ) tells the ECU how fast the car is moving. In most hondas, it pulses to ground 4 times per revolution of the axles. Most OBD0 cars ...
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VtecSolenoid
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29 Sep 2004 - 21:45 - r1.2
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Home.Bulter
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The Vtec solenoid is a solenoid that is controlled by the ECU. When a 12v signal is applied to it, it opens allowing oil pressure to switch from the LowCam to the ...
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WasteGate
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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A Wastegate is a device that lets exhaust gas escape bypassing a turbocharger. Because turbochargers create boost using energy from exhaust gas, the wastegate can ...
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WebHome
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30 Mar 2007 - 22:03 - r1.26
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Home.racingsky
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Welcome to the PGMFI Library! If at any time you wish to return to this main wiki page, click the Project PGMFI logo. THIS IS A NEW WIKI ENGINE. PLEASE SEND EMAILS ...
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WebPreferences
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17 Feb 2004 - 22:22 - NEW
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Home.blundar
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TWiki.Library Web Preferences The following settings are web preferences of the TWiki.Library web. These preferences overwrite the site-level preferences in TWIKIWEB ...
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WebStatistics
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07 Nov 2007 - 15:33 - r1.261
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TWiki Guest
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Statistics for Library Web Month: Topic views: Topic saves: File uploads: Most popular topic views: Top contributors for topic save and uploads: Nov 2007 19044 0 ...
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WhatYouNeed
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11 Apr 2005 - 22:19 - r1.6
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Home.drdisco69
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"Chipping" an ECU means replacing the program running the ECU . Chipping is just slang. What we actually do is program (or "burn") a new bin file to the ROM to replace ...
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WhyDoPiggybacksSuck
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07 Apr 2005 - 21:22 - NEW
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Home.blundar
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I got tired of typing this repeatedly on discussion boards, so I decided to add it here. If you don't know what a PiggyBack controller is, read about it first. PiggyBack ...
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WideBandO2
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17 Feb 2006 - 19:56 - r1.6
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Home.kabuki
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What is a Wideband O2 sensor It is an OxygenSensor that gives stable output over a much larger range than standard 1-wire or 4-wire oxygen sensors. It is helpful ...
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WikiPlugin
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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The latest hacks include support for !WikiPlugins. WikiPlugins allow one to easily add new types of dynamic content (as well as other functionality) to wiki pages ...
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Willem
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24 Nov 2005 - 00:08 - r1.4
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Home.4g vtec
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The http://www.willem.org Willem programmer is essentially an open design / open source ROM burner. It is far from a polished design the software was very buggy and ...
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XE5
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19 Feb 2004 - 22:55 - r1.2
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Home.blundar
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88-91 (dates questionable?) Mugen Race platform (ZC) The XE5 code is derived from the PM7- specifically, the PM7-0330 that lacks an O2 sensor. It is a "race only" ...
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ZIF
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10 Mar 2004 - 21:24 - NEW
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Home.blundar
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ZIF stands for Zero Insertion Force. ZIF sockets are commonly used in ECU s where the EEPROM will be removed and reinserted frequently. "ZIFing an ECU" is when you ...
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_EA
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19 Feb 2004 - 22:01 - NEW
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TWiki Guest
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EA (EA Prime) is a pin on the MCU that controls whether the MCU runs off Internal ROM or an external ROM chip. EA is pin 31 on 40-pin Intel8051 MCU s OBD1J1 J1 on ...
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Number of topics: 226
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