i just bought a cheap aftermarket o2 sensor and I'd like to know what wires on the gsr harness are hot, signal, ground, and circuit.
also, my o2 senosr I bought has two white, 1 grey, and 1 black wires coming from it does anyone know which is which?
thanks

 

This is just a guess... I had to do this same thing for my friend and i believe the wires were grey ='s the standard white which is the O2 signal. The black ='s the standard green. The two whites would = the blacks on the OEM O2 sensor. I'm not sure if polarity matters so I would check into them. ALSO I AM NOT 100% SURE ON ALL OF THIS SO, DON'T JUST LISTEN TO ME... I'm sittin here in my dorm at OSU right now so I don't have any aftermarket O2 sensors readily available to look at. I'll check into it more and If i find out anything i'll be sure to tell ya. Laterz