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Old 08-31-2008, 04:18 PM   #1
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Default 94 accord ex ecu pin chart?

anybody know a link to a pin out chart for either the 93 accord ex ecu or the 94 ex f22b1 ecu (POA)

ive read the FAQ threads and cant find anything
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92 HONDA CIVIC DX SEDAN 5 SPEED OPAL GREEN METALLIC DAILY
93 HONDA CIVIC CX 5 SPEED (TOTALED BY DRUNK DRIVER & MISSED)
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Old 08-31-2008, 05:27 PM   #2
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Default Re: 94 accord ex ecu pin chart? (hon2984)

94-95 Accord ECU

Pin - Description - Wire Colour

A1 - INJ1 - BRN
A2 - INJ4 - YEL
A3 - INJ2 - RED
A4 - VTEC SOL - GRN/YEL
A5 - INJ3 - BLU
A6 - O2 Heater ORG/BLK
A7 - Fuel Pump Relay - GRN/BLK
A8 - EMPTY
A9 - IACV - BLK/BLU
A10 - Engine Mount Control - GRN/WHT
A11 - EGR SOL - RED
A12 - Rad Fan Control - GRN
A13 - MIL - LTGRN/RED
A14 - Fuel Injection Air Control - WHT/YEL
A15 - AC Control - RED/BLU
A16 - ALT Control - WHT/GRN
A17 - EMPTY
A18 - FAS - BRN/WHT (TCM)
A19 - IAR Control SOL - ORG/GRN
A20 - PCS - RED/YEL
A21 - ICM1 - YEL/GRN
A22 - EMPTY
A23 - Power Ground 1 - BLK
A24 - Power Ground 2 - BLK
A25 - IGP1 (Power Source) - YEL/BLK
A26 - LG1 (Logic Ground) - BRN/BLK

B1 - IGP2 (Power Source) - YEL/BLK
B2 - LG2 (Logic Ground) - BRN/BLK
B3 - AFS A - WHT RED (TCM)
B4 - AFS B - GRN (TCM)
B5 - AC Pres Switch - RED/WHT
B6 - EMPTY
B7 - AT Gear Pos - lightLTGRN
B8 - Power Steering Pres Sw - GRN
B9 - STS - BLU RED (or BLK/GRN)
B10 - VSS - ORG
B11 - CYP Signal - ORG
B12 - CYP Ground - WHT
B13 - TDC Signal - ORG BLU
B14 - TDC Ground - WHT BLU
B15 - CKP Signal - BLU GRN
B16 - CKP Ground - BLU YEL

D1 - Voltage Back Up - WHT YEL
D2 - Brake Switch - GRN/WHT
D3 - EMPTY
D4 - SCS - RED
D5 - BARO OUT - BLU/WHT
D6 - VTEC Pres Switch - BLU/BLK
D7 - TXD/RXD - lightLTGRN RED
D8 - EMPTY
D9 - ALT FR Signal - WHT RED
D10 - EL (ELD) - GRN RED
D11 - TPS - RED/BLK
D12 - EGR Lift Sensor - WHT/BLK
D13 - ECT - RED/WHT
D14 - O2 Signal - WHT RED
D15 - IAT - RED YEL
D16 - EMPTY
D17 - MAP - WHT YEL
D18 - VREF - lightLTGRN/BLK
D19 - VCC1 (Provides Sensor Voltage) - YEL/WHT
D20 - VCC2 (Provides Sensor Voltage) - YEL BLU
D21 - SG1 (Sensor Ground) - GRN/WHT
D22 - SG2 (Sensor Ground) - GRN BLU

Last edited by GhostAccord; 01-14-2009 at 05:52 PM.
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Old 08-31-2008, 10:42 PM   #3
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Default Re: 94 accord ex ecu pin chart? (GhostAccord)

A B D
12345678910111213 ........... .........
14151617181920212223242526

is how it would be numbered? if i was looking at the ECU.


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Old 09-01-2008, 03:09 AM   #4
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Default Re: 94 accord ex ecu pin chart? (hon2984)

Oh yeah, sorry about that.

On the OBD1 ECU's the numbers are Odd numbers on top & even on bottom.

Click the image to open in full size.
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Old 09-01-2008, 06:03 AM   #5
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Default Re: 94 accord ex ecu pin chart? (GhostAccord)

much appreciated ghost!

by the way i checked out your ITB thread. Very nice! Click the image to open in full size.
how did you find out that you could use those throttle bodies from a suzuki?

i know that you dont have to worry about vtec kicking in because of a CEL
but how do you keep your car from going into limp mode because you dont have an IACV?
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92 HONDA CIVIC DX SEDAN 5 SPEED OPAL GREEN METALLIC DAILY
93 HONDA CIVIC CX 5 SPEED (TOTALED BY DRUNK DRIVER & MISSED)
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Old 09-01-2008, 07:28 AM   #6
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Default Re: 94 accord ex ecu pin chart? (hon2984)

No problem Click the image to open in full size.

As for the throttle bodies, you can use pretty much any throttle body. Be it single, double or quad. As long as it fits your car, you have a way to feed it fuel and tune it.

The ECU ROM (program/basemap) that I will be using will not be looking for an IACV. The two rom editors that I have used, Crome & eCtune, have the ability to disable a number of items such as; IACV, VTEC, IABs, & A/C. Therefore your ECU doesn' throw a CEL if thoes items are removed from your car.


Modified by GhostAccord at 12:33 PM 9/1/2008
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Old 11-06-2009, 07:52 AM   #7
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Default Re: 94 accord ex ecu pin chart?

hey do you know ware i can find this same diagram for a 96 accord lx f22b2 poj lo1 ecu i need this very badly pleae help...
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Old 11-06-2009, 08:52 AM   #8
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Default Re: 94 accord ex ecu pin chart?

96-97 POA & POJ / P0B

Click the image to open in full size.

Pin Description Wire Color
A1 INJ4 YEL
A2 INJ3 BLU
A3 INJ2 RED
A4 INJ1 BRN
A5 SO2SHTC ORG/BLU OR ORG/BLK
A6 PO2SHTC ORG/BLK
A7 ESOL
A8 BLANK (F22B1 = VTSol GRN/YEL VTEC solenoid)
A9 LG1 BRN/BLK
A10 PG1 BLK
A11 IGP1 YEL/BLK
A12 IACV BLK/BLU
A13 MCS GRN/WHT
A14 BLANK
A15 PCS RED/YEL
A16 FLR GRN/BLK
A17 ACC RED/BLU
A18 MIL LT GRN/RED
A19 ALTC WHT/GRN
A20 ICM YEL/GRN
A21 BLANK
A22 LG2 BRN/BLK
A23 PG2 BLK’
A24 IGP2 YEL/BLK
A25 IARSOL ORG/GRN
A26 BLANK
A27 FANC GRN
A28 2WBS
A30 BLANK
A31 BLANK
A32 BLANK

Automatic Transmissions use the ECUs B connector
B1 BLANK
B2 BLANK
B3 SHA BLU/YEL
B4 LCB GRN/BLK
B5 LCA YEL
B6 BLANK
B7 BLANK
B8 ATPD GRN/BLU
B9 BLANK
B10 BLANK
B11 SHB GRN/WHT
B12 ILU WHT/GRN
B13 D4 IND BLU/RED
B14 NMSG WHT/BLU
B15 NM ORG/BLU
B16 ATPR GRN/RED
B17 ATP2 GRN/YEL
B18 ATP1 LT GRN/WHT
B19 BLANK
B20 BLANK
B21 BLANK
B22 NCSG BLU/YEL
B23 NC BLU/GRN
B24 ATPD4 LT GRN/BLK
B25 ATPNP LT GRN

C1 BLANK
C2 CKPP BLU
C3 TDCP GRN
C4 CYPP YEL
C5 ACS RED/WHT
C6 STS BLU/RED OR BLK/GRN
C7 SCS RED
C8 K-LINE LT GRN
C9 BLANK
C10 VBU WHT/YEL
C11 BLANK
C12 CKPM WHT
C13 TDCM RED
C14 CYPM BLK
C15 BLANK
C16 PSPSW GRN
C17 ALTF WHT/RED
C18 VSS ORG
C19 BLANK
C20 BLANK F22B2 = C20 PFSW BRN
C21 BLANK
C22 BLANK
C23 BLANK
C24 BLANK
C25 BLANK
C26 BLANK
C27 BLANK
C28 BLANK
C29 BLANK
C30 BLANK
C31 BLANK

D1 - TPS (RED/BLK)
D2 - ECT (RED/WHT)
D3 - MAP (WHT/YEL)
D4 - VCC1 (YEL/WHT)
D5 - BKSW (GRN/WHT)
D6 - BLANK
D7 - PHO2S (WHT/RED)
D8 - IAT (RED/YEL)
D9 - EGRL (WHT/BLK)
D10 - VCC2 (YEL/BLU)
D11 - SG2 (GRN/BLU)
D12 - SG1 (GRN/WHT)
D13 - SHO2SG (GRN/BLU or RED/WHT)
D14 - SHO2S (WHT/RED)
D15 - PTANK (GRN/RED)
D16 - ELD (GRN/RED)

Last edited by GhostAccord; 11-06-2009 at 11:11 AM.
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Old 11-06-2009, 10:08 AM   #9
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Default Re: 94 accord ex ecu pin chart?

ok thanks but now another question the reason i need this is im trying too hook up an apexi neo afc controler all these abreviations arent really helpin i got power and ground now need to figure whick wire is rpm and throtle..... also arent you missing section d on pin out chart

Last edited by jthrasher1; 11-06-2009 at 10:19 AM.
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Old 11-06-2009, 11:12 AM   #10
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Default Re: 94 accord ex ecu pin chart?

Sorry forgot to copy the D section. I made the correction/edit to above post.

The RPM signal output for fuel hacks does not connect to the ECU. I think the RPM signal wire you are looking for is the BLU wire that goes from the distributor to the back of the gauge cluster. It is the tach rpm signal wire.

The throttle signal aka TPS or throttle position sensor is pin D1 (RED/BLK)
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Old 11-06-2009, 11:29 AM   #11
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Default Re: 94 accord ex ecu pin chart?

thank god for people like you lol this did the trick allset now thanks again.... and im probly gonna use the blue wire but my buddy told me i could use the crankshaft position sensor is he right or wrong if ya know lemme know thanks...

Last edited by jthrasher1; 11-06-2009 at 11:34 AM.
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Old 11-06-2009, 12:15 PM   #12
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Default Re: 94 accord ex ecu pin chart?

If you are looking for an ECU wire to tap into the Neo diagram that I found shows that you can use the ICM signal from Pin A20 for the RPM signal.

Click the image to open in full size.
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Old 01-22-2010, 06:38 PM   #13
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Default Re: 94 accord ex ecu pin chart?

hi, i have the 97 cl v6 and i need the pinout for it, can any one help, all i can fined is the f model and the f is not the same as the j. thanks in advance
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Old 01-22-2010, 06:58 PM   #14
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Default Re: 94 accord ex ecu pin chart?

Quote:
Originally Posted by tat2me View Post
hi, i have the 97 cl v6 and i need the pinout for it, can any one help, all i can fined is the f model and the f is not the same as the j. thanks in advance
http://www.helminc.com/helm/product2...0EL&itemtype=N

http://www.helminc.com/helm/product2...803&itemtype=N
http://www.helminc.com/helm/product2...800&itemtype=N
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