Wiring Harness Differences

[Goat Blower]

There are at least four that I found. 90's have their own for each of the 5-speed and the auto, and then the 91-94 have two as well. The autos can be used in the 5-speed cars as best I can tell, you just swap one of the ECU plugs from your old harness. I've got a 91 auto harness I'll be swapping into my 92 5-speed. I'm planning on stripping the whole thing apart though and only keeping what's still in my car and adding four more injector wire sets.