I have look all over for this. I bought a Chiltons book and they did not print that year in it. Can't find one to match my wiring this is a truck ecm and harness.

A1 Dark Green white strip
A2 Yellow black strip
A3 Light Green
A4 Tan black strip
A5 Blank
A6 Blank
A7 Dark Brown
A8 Blank
A9 Blank
A10 Blank
A11 Gray
A12 Purple

B1 Blank
B2 Red
B3 Blue
B4 Pink
B5 Light Blue
B6 Green yellow strip
B7 Light Blue white strip
B8 Red
B9 Gray
B10 Blue
B11 Brown or black
B12 Green

C and D are 32 pin

 

i have the full electrical system manual from a 90 with tpi info - if you think that will help i can post it. pm, and i will if you want.

 

Thanks but I think it will need to be a TBI 91 92 93 with a 7060 ecm.

 

TPI is not the same

Ive got the pinout in my 92 service manual, Ill see if i can dig up a camera, otherwise Ill type it up in excel

Row A & B are on C1
Row C & D are on C2

Your posted colors are way off

 

(Your posted colors are way off)

Thats what I can't figure it looks like its a factory harness but the colors don't match anything I can find. Its a C1 24 pin and C2 32 pin. This harness and ecm does not use the spark control module like my 86 TPI has.

 

No wonder nobody can find anything in the diagrams and manuals for our F-bodies, this ECM is from a truck, as BlueMax stated in the beginning.
Our TBI engines use the '746 ECM model.

I'd recommend looking in a Chilton's for a truck or you could search Chevy truck forums to find one online.

Hope this helps.
Lou

 

mine are the factory wiring diagrams for ALL mods of that year. the book has tpi, tbi, everything. i dont think they changed all that much - except the people who put things together appear to have reversed the colors in the power mirrors.
it was 35.00 well spent - they downloaded all of the diagrams, color pics of the wires, everything.
but if you dont need them - that is kool, i was just offering.
i posted the general diagram at https://www.thirdgen.org/forums/tech...hing-91-a.html see if you think it can help and let me know.

or maybe this is more to your liking. vin e is the tpi or is it f - well you can have both. we have to look out for each other.

 

I bought the Chiltons book it has all but the years 91 92 93. I was reading a few places on here about people using the 7060 ECM. Was just hoping some someone had the pinout. Thanks