I've asked a couple of questions about the differences between the 02 sensors on 95/96 and 97+ Maximas. Can anyone post a picture of the rear heated 02 sensor schematic from a 97 FSM? I've got a 95 FSM and it shows 3 wires for the rear 92 sensor - I think the 97+ has four wires and I'd lilke to know what they do. Thanks.

 

Boing (10 characters)

 

I have a 98 specific FSM.

 

according to my 97 FSM there should be four wires at the harness connector for the rear heated O2 sensor - a red & black wire from ignition switch, white going to ECM, black for ground, and a red also going to the ECM. My scanner is broke otherwise i would have posted it, I hoped I helped a little, lol.