Originally posted by likaciv
if its the gsr wiring harness it should have the plug. the wire that gets grounded by the ecu pin, is a pink wire that is in the harness on the driver side engine compartment. That is for an obd1 harness and motor, since i would assume you put in an obd11 motor it may be different.
And I'm assuming the other wire gets put to a 12v source. I heard that if you use and obd2 ecu one wire goes to a ground and the other to the ecu, but if you are usinga OBD1 ecu one wire goes to a 12v source and the other to the ecu. Is this correct? And what pin does it plug into?