Originally Posted by westcoaststyle
I know you can use the stock harness for an OBD1 GSR while running the new wires that are needed. Is the C5 any different? :dunno:
No the C5 in this case can be treated the same way. See the problem why you cannot get a real answer is because we do not know what he means by OBD1ed b18c5. Also what kind of a civic? CX? VX?