On the o2's there's for a 4 wire hook-up, which color is the signal wire?

 

I'm pretty sure that most of the time is the purple wire.

 

I used the purple wire but tis not working, was told its the gray wire

 

anyone else?

 

PM Shoebox, he has docs on everything.

Here's something i just found on google.
http://www.prostreetonline.com/pso/i...to/swpaf/2.jpg

I'll check the doc I got with my air/fuel gauge, purple sounds right to me.

 

Make the connection on the wiring harness, not on the sensor wires.

Driver's side is purple/white stripe, connected to pin C20 (grey connector) on the PCM.

Passenger side is purple wire, pin C8.

The sensor has tan, purple, black and pink wires. Purple is the signal wire.

 

thanxs injuneer, will try that