I'm currently swapping a h23a1 into my accord. I'm wondering does it matter if the ecu came from a 94 prelude and the motor is from a 96? And I'm also wondering where the best place is to look up wiring diagrams because there is a few things i have to wire up since the wires were cut.

 

I believe the H23A1 Prelude motor is not-VTEC and the 95 EX is, so that will be a problem. And the H motor uses different tuning for the motor, so that will be a problem. You need an ECU for the motor you will be using, or one chipped for tuning.

 

reuse the f22b1 harness leave the vtec connectors hanging Does your f22b1 have a knock sensor? if not u need to wire that up. the ecu u want is a P14 auto or manual what ever your car is.