I have a turbo 92 gsr da. The motor is a 94 head with a 99 block. Could I use a 94 gsr harness in mine or no because my harness is butchered and I found another for a good price.

 

So to clarify, you have a DA with a USDM B18C1?

You should be able to use a 94 GSR harness but some of the sensors on your 99 block won't be used. At least the crank angle sensor behind the lower timing cover. No problem, just leave it unplugged. Also you will need an OBD1 distributor. If you're running the OEM manifold with IAB, you should have an OBD1 P72 ECU.

 

Ok I'm currently working on getting a ecu the one that cake with it is a tuned ls ecu and the car runs like crap. I appreciate the help.