JaysXJ
NAXJA Forum User
- Location
- Louisville, KY
Okay, Got a 87' 4.0, auto. Its been running very rich lately and I'm going to replace the O2 sensor on the exhaust down pipe. It is 3-wires! I thought all XJ O2 sensors were 4-wire. I got a print out of the FSM for an 88' and it says 4-wires. The colors, I think, are green, yellow and black. Just wondering if anybody would volunteer some more info on the 3-wire setup. Thanks...