I'm trying to hard wire my post cat 02 sensor in. can anyone tell me the wires
I have a red, a red with a black stripe, a black, and a white wire. wich is the heater wires what is the ground and what is the signal wire thanks need to pass emissions tomorrow

 

On the rear heated oxygen sensor, pin 1 is a red wire that goes to the ECM pin 107.

Pins 2 & 3 are in a shielded wire, your heater wires.
Pin 2 is white and goes to ECM pin 56.
Pin 3 is black and goes to ground.

Pin 4 is a red/black stripe and is 12 volts coming from the ignition switch and fuse # 34.

This is on page EC-156 of the 1997 FSM.

Don't have one? download it here:

http://www.nicoclub.com/FSM/maxima/

 

please simplify signal wire ground wire and heater wire thankyou

 

i dontt have a clip i just have the wires please help

 

bump please help

 

Usually the two wires that are the same color are the heater (reds, polarity does not mater), black is usually ground in general, and white is usually signal on O2 sensors. Usually...

With the link to the FSM that Dennis posted, you should be able to figure it out.