I just got a 95 b18c1 for my 89 si. I have the b18c1 engine harness and the p72 ecu. I'm trying to find out exactly how to convert, i also heard you had to do some rewiring behind the dash. I would really like to use the stock ecu. I've heard there is adapter, but i've had no luck finding one. I need to find everything i can. I really good site that talks in detail would be awsome. Thanks Alot!