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Author Topic: 92 Chevy computer diagram  (Read 28760 times)

Offline Buds Dad

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92 Chevy computer diagram
« on: November 13, 2009, 02:25:50 pm »
I bought a TBI set up from Ebay to put in my daughters 85 and the guy cut the harness out of the pick up he took it from and failed to mention that.  >:( Anyone have or know where I can get the diagram for the connectors for this computer so I can try to do something with this harness. The computer service # is 16168625 BHAS and the sticker below it has 16194325.Im trying to get a harness locally but not having much luck.I really dont want to use this harness but money is a little tight right now. Any help would be greatly appreciated.
« Last Edit: November 13, 2009, 02:55:25 pm by Buds Dad »
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Offline VileZambonie

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Re: 92 Chevy computer diagram
« Reply #1 on: November 13, 2009, 04:33:55 pm »
So you just want the ecm pinouts? Give me the application that it came out of and I will post it for you.
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Offline Buds Dad

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Re: 92 Chevy computer diagram
« Reply #2 on: November 14, 2009, 10:53:37 am »
Yes.I figured if I have to use this harness I would splice the wires back together and make a good harness.It dosent seem as simple as color to color and I want to be sure Im doin it right.I came out of a 1992 K1500 4x4. I dont have a VIN# for the pick up it came from. Thanks
« Last Edit: November 14, 2009, 10:57:59 am by Buds Dad »
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Offline VileZambonie

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Re: 92 Chevy computer diagram
« Reply #3 on: November 14, 2009, 12:57:53 pm »


A1


A4 = EGR CONTROL.
A5 = SERVICE ENGINE SOON LIGHT CONTROL.
A6 = IGN-ECM FUSED.
A7 = TCC CONTROL.
A8 = SERIAL DATA.
A9 = DIAGNOSTIC TEST TERMINAL.
A10 = VEHICLE SPEED SENSOR SIGNAL.
A11 = MAP SENSOR GROUND.
A12 = SYSTEM GROUND.
B1 = BATTERY 12 VOLT.
B2 = FUEL PUMP SIGNAL.
B3 = EST REFERENCE LOW.
B5 = EST REFERENCE HIGH.
B7 = ESC SIGNAL.
B8 = A/C SIGNAL.
B10 = PARK/NEUTRAL SWITCH SIGNAL.





C2


C3 = IAC "B" LOW.
C4 = IAC "B" HIGH.
C5 = IAC "A" HIGH.
C6 = IAC "A" LOW.
C7 = HIGH GEAR SWITCH SIGNAL.
C9 = CRANK SIGNAL.
C10 = CTS SIGNAL.
C11 = MAP SENSOR SIGNAL.
C13 = TPS SIGNAL.
C14 = MAP, TPS 5 VOLT REFERENCE.
C16 = BATTERY 12 VOLT.
D1 = SYSTEM GROUND.
D2 = TPS & CTS SENSOR GROUND.
D4 = EST.
D5 = EST BYPASS.
D6 = OXYGEN SENSOR GROUND.
D7 = OXYGEN SENSOR SIGNAL.
D14
D16 = INJECTOR 2 DRIVER CONTROL.
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Offline Buds Dad

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Re: 92 Chevy computer diagram
« Reply #4 on: November 14, 2009, 02:22:36 pm »
Awesome man.Thats exactly what I need. Thanks for the info and I appreciate you takin the time to help us out.
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Offline VileZambonie

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Re: 92 Chevy computer diagram
« Reply #5 on: November 14, 2009, 06:20:44 pm »
You're welcome. Let me know if you need anything else.
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Offline Buds Dad

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Anyone got a diagram
« Reply #6 on: November 17, 2009, 07:57:03 pm »
Anyone got a ECU diagram for a 95 c1500?Thanks
« Last Edit: November 25, 2009, 10:02:27 am by Buds Dad »
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Offline VileZambonie

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Re: Anyone got a diagram
« Reply #7 on: November 17, 2009, 08:08:53 pm »
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Offline Buds Dad

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Re: Anyone got a diagram
« Reply #8 on: November 17, 2009, 08:13:36 pm »
yes.but now I need a wiring diagram so i can sort out this harness. >:( Im just about ready to burn this project to the ground.
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Offline joesgarage71

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Re: Anyone got a diagram
« Reply #9 on: November 18, 2009, 04:36:21 am »
Quote from: Buds Dad on November 17, 2009, 08:13:36 pm
yes.but now I need a wiring diagram so i can sort out this harness. >:( Im just about ready to burn this project to the ground.

Nothing like a good wiring harness to start out with.
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Offline Buds Dad

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Re: Anyone got a diagram
« Reply #10 on: November 18, 2009, 09:13:56 am »
Actually I just got this harness at a salvage yard yesterday. The harness goes from the computer to the relay box.I want to remove all the stuff Im not gonna need as there seems to be alot I wont need.I didnt cut any of the wires going to the computer but I did remove the relay box from the harness. I wanted a Diagram to help sort out some of the other wiring.
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Offline Buds Dad

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Re: 92 Chevy computer diagram
« Reply #11 on: November 19, 2009, 06:55:50 pm »
I got a few diagrams from the library today and have a few questions base on the harnes I have and the diagrams I found.I couldnt find an exact match so Im trying to eliminate some stuff base on colorcodes and the pinout info I have.
1. If the knock sensor goes directly to the PCM,does this mean I will not have a ESC module?
2.What transmission stuff do I need to keep? I have a 350c I will be using.
3. Which speed sensor wire do I use and where does it go? VSS input or VSS Buffer signal  ???
4. So far I have sorted out the TPS,IAC,Injectors,Coolant temp,O2,MAP,Oil press switch and Knock sensors,Fuel pump relay and ignition.Did I miss anything?I have sorted out a few wires Im not sure I will be needing like the A/C signal and brake signal wires.
Thanks
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Offline Buds Dad

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Re: 92 Chevy computer diagram
« Reply #12 on: November 19, 2009, 07:15:32 pm »
« Last Edit: November 22, 2009, 12:18:40 pm by Captkaos »
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Offline Captkaos

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Re: 92 Chevy computer diagram
« Reply #13 on: November 22, 2009, 12:15:43 pm »
Being a FTP confuses the forum.  You just have to click on them.  (plus you put http://ftp://ftp which won't work)
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Offline Buds Dad

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Re: 92 Chevy computer diagram
« Reply #14 on: November 22, 2009, 02:48:58 pm »
Sorry.I didnt mean to be an FTP.  :-[ Imusually not like that,just trying to get some answers.  :)
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