I need help with wiring. Recently purchased a 91' formula, 350 TPI/700r4. This car was a theft recovery, so some idiot cut and destroyed half the wiring harness.
Question: does anyone have a diagram of the firewall connector for the engine wiring harness? I need to know color and function of each wire entering the back of the fuse box coming from the engine harness.
Also, do the 91' models have the vss buffer built into the ecm? I purchased an Autometer speedo to install, and it says I need the vss buffer.

 

Wow! Thanks for all the help. I new these forums were good for something besides bragging rights.

 

if you find a diagram let me know as well....as I'm rewiring one as well...I've been ohm out each pin on the ecm and each sensor(my haynes manual has schamatics and pin outs on the ecm)as far as the fuse block and c100 buklhead at the drivesside firewall,..I'm about to get in there and try to just trace everything out the hard way......and yea its a pain...I wish I had a diagram to go by as well...good luck
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this has some of the thirdgen wire colors at the bulkhead
http://web.camaross.com/forums/showthread.php?t=474185

 

I finally traced every wire down with a multimeter, it only took all day. Only got 3 wires left to connect. PNK/BLK coming from charcoal canister which I believe goes to 12v ign., and 2 BLK/WHT wires that I think ground to the chassis. If you need any help let me know, I'm a certified wiring expert know. lol

 

why don't you buy a chiltons manual? it has complete wiring diagrams

 

I have one, but it does not show a diagram of the firewall connection.