I have a feeling my project car is going to be a pain...not that it hasn't so far. The Car was a 1995 3.4L V6, under the hood is a 1994 LT1. The wire harness will connect to the PCM from the Engine, But the 1 or 2 connectors I disconnected under the passenger side glove box... will they connext right up too? ROFL! I don't Even know what system I am running, I think the 1995 had OBDII and the 1994 System is forcing me to an OBDI sys. Any imput, I don't think shoebox had a diagram or input on this situation.

Thanks in advance!

 

There are diagrams and references for all the connectors from the engine harness to the interior here. The two connectors on the RH shock tower are also shown.
Both are OBD-I.

 

Both look to be the same...

 

i just put 94 z28 harness in my 95 formula and the only problemms i had

1) 1,4,6,7 fuel injectors were not getting power . there was power at the fuse box but not injector . take the injector wire from the fuse box (+) and hook it to the wire going to the injectors . both wires should be on the rh shock tower . each wire in different plugs . look on shoebox.com .

2) be sure the 2 org. wires (black plug) on pcm are getting power from the batt . on my they wernt so i just cut them wired them to my own fuse and then to the batt .

i dont know if this is what is wrong with your car but thats what was wrong with mine . im not sure if i fixed it the right way but its fixed and the car runs like a champ . anything that shoebox tells you is probly the best advise your going to get . shoebox.com will show you everything you need to know

 

There's a way you can convert your 94 hookup fit a 95 by using just the ends of a paper clip connecting just a couple of points. I don't know exactly which ones. But I have done it with my buddy who used his 94 hookup on my 95 Z.