Okay, so I'm returning my 97 GXE back to stock, so I had to order a new O2 sensor from my local dealer because mine didn't have a rear O2 sensor anymore (I took it out).

I got the sensor and had to weld it into the exhaust because I put the 99 exhaust from my new car onto the 97 and the O2 sensor hole was a different size.

So, I go to install the cat and O2 sensor and notice that there is a different plug on the car and sensor. On the car there is a square plug with 4 wires and the O2 sensor has a rectangular plug with 3 wires.

Anyone with a 97 FSM know what wires do what? I would like to cut the connectors off and solder the correct wires together if at all possible.

 

check your pm's

 

Anyone with a 97 FSM wanna look this up for me? Sprint answered my question about what the wires on the NEW O2 sensor does (4 wires). Now I need to know about the sensor with 3 wires...

 

http://www.motorvate.ca/auto/maxima/..._O2_repair.htm

 

Eh, I already looked at that. Not a whole lot of help. Only thing it tells me is that the black/red wire on the newer O2 sensor is not present on the older.

That black/red wire goes to the battery on the newer one.