Ok, so, tomorrow I'm going to pick up my USDM H22a4 out of a 97 lude. Found a wiring harness out of a 01 for it, now I just need the ecu. Wanting to stay OBD2 for the time being so what ecu would I need? I know I need one out of a 96-01 but what ecu code am I looking for? I've done my searching and research just to find many different answers. Any and all help is appreciated!!!

 

What car is this swap going into? A 96 Prelude H22 ECU is probably best. Its OBD2 with no immobilizer.

 

37820-P13-A12 or 37820-P13-A11

 

or the ecu out of the car ur getting harness and motor out off. will work l think u may need to swap ignitions and key but would save u cash on the rare p13-a12

 

I want to say that programing the Prelude keys is different from all the others. I think you need to have the red key with you when you go in or you can't get it done