91 dx droppin obd1 b16a (XSI). I have the engine harness all the way passed the cannon plugs cut off right before the firewall could I just match up the wires to the wires out of the ecu!! or even repin the harness out of the ecu to cannon plugs. It just seems tedious to take all of the nice wiring off the engine. will this work, i have the dpfi swithched to mpfi and vtec, knock sensors wires all ran through the firewall.