Ok I have a 96 accord ex 2dr wit a h22a4 swap chasis is obd2 h22 is obd1. I didn't do the swap bought it like that. I checked my cel codes and got o2, egr valve lift, and knock sensor. Can any one explain in lames term how to check these sensors. and do I have th o2 code cause the chassi is obd2. And can someone get me a link for ecu pin out for my shit. I want to know what all the wires are. reason is I have a red wire that goes to nothing F^&^%ed up huh. I want to find out what it is.