I changed both O2 sensors in my cherokee... i still get an error for the upstream one. Turns out one of the wires was resting up against the exhaust pipe and has burned through... does anyone know where i can get the harness that goes from the upstream oxygen sensor and ties into the main enging harness? i dont want to splice wires... thank you
99 Jeep Cherokee Oxygen Sensor wiring harness?
i have the same problem...the colors that are on the main harness and the colors on the oxygen sensor are different i cant figure out which way the wires go...your gonna have to call a junkyard and get the parts and splice the wires..i dont think any auto parts are going to have it and the dealer will probably be expensive
99 Jeep Cherokee Oxygen Sensor wiring harness?
complete new unit or splice
the universal o2 sensors show bad readings, many of them dont turn off the light. I would splice much easier,and your are probably going to have to get an oem part eventually, did the scan say both were bad? I changed out my front with an oem part it is a denso brand from rockautoparts.com, I disconnected the battery for 30 min that resetted the computer and no more codes, good luck
