So after trying to search ive realized im using too many words to get any worthwhile responses. So i was wondering, if im going to be getting an h22 motor with the ECU, shouldnt it all just plug right up and work without an issue? Im putting the motor into a 97 civic and im assuming im removing my stock ECU. So i guess my question is will i have to worry about splicing and screwing with wires since its the stock prelude ECU? Any help on this would be greatly appreciated

 

What year is the ecu from?

 

its from a 97-01 prelude. Im not exactly sure which year specifically though