I have a '89 CRX DX and I am putting in a B18A1 from a 93 Integra. The only thing I have left to do is the wiring. I did get a OBD0 - OBD1 conversion harness for the ECU and it has a sub harness for extras that come on OBD1. I could really use some help or a full write up for under the hood if anyone knows before I start cutting up everything. I do have 2 Integra harnesses and the plugs from the body harness along with my original engine's harness and of coarse the original body harness in my CRX. Willing to cut up anything, just need to know what connects to what.

 

First and fore most look in the FAQ section and look up dpfi to mpfi. After you do that then you can use your obd1 jumper harness and ecu.