Originally Posted by Fabrik8
Amen. If you're using an OBD1 ECU in an OBD2 car, you should just need an adapter harness.
match your wiring harness to the car ( obd #) , match your ecu to your engine and find a obd conversion harness to match the ecu you want to run. you can use a obd1 or 2 distributor, the wires are the same color on each distributor plugs, cut and swap out the plugs for what obd you want , obd 1 or 2.