I high centered my XJ and disconnected the rear O2 Sensor. I lost the "Male" connector. The "female" connector, the one attached to the actual O2 sensor is fine. On the female connector there are 2 white wires, black, and gray. On the Male end there is a black, green, brown/white, and brown/yellow. Does anyone know how to match the colors up so I can connect it back? Thanks.

 

I hate seeing this go unanswered.

It looks like (from the FSM) that the upstream uses a gray connector and the downstream is black.

For them both it looks like there's 2 fat and 2 skinny keys on the body. I don't know if they show looking at the front or back of the connector, but the 2 fat keys would be located at 9 and 6 o'clock and the skinny's at 12 and 3.

upper left - pin 1 - dark green/white - ASD relay
upper right - pin 2 - black - Ground
lower left - pin 3 - brown/yellow - sensor ground
lower right - pin 4 - black/orange - sensor signal

All I can say is just be careful and sure before you power it up. There's no worse feeling than when you let the smoke out of a component.

-bob-

 

Hmmm after re-reading your post, those colors don't seem to jive. I dunno.

Sorry if that didn't help

-bob-

 

yea, I have no idea off the top of my head, if this is still unanswered by Tues. I'll be at my automotive class so I can answer you then... sorry if you have to wait.