Does any body knows if I can use the crx si engine wire harness into the b18a1 engine and if so do I have to convert the wire harness and get some sensors for my rex, I know if i were to use the si harness I would have to extend a couple of wires just to reach and mybe change the injector plugs or not and mybe change some sensors on the bock.I have a couple of wire harness for the b18, one has grey plugs which does not plug into the crx engine bay wire harness, one has milky plugs which is identical to the si harness and the last one is the si wire harness, which of these harness is best to use. If any body can help me on this little delema e- mail me at jrcrx 76@yahoo.com it would be greatly apreaciated thank. jrcrx76

 

The Si wiring harness is the one to use. It should work with minimal modification. You may have to extend the wire for the O2 sensor.