Need help ASAP, thanks
 

I have a good 95 Probe GT engine and trans that I'm swapping into a 96 Probe GT car. The 96 already has the engine and trans out and I don't have access to any parts on that engine. However, the wiring harness is still in the 1996. Do I have to swap the wiring harness and ECM from 96 to 95 for this to work because of the OBDI to OBDII difference?