Truckedup
NAXJA Forum User
- Location
- Western NY state
97 XJ 5 speed check engine light ,code 138, high voltage ,bank 1, sensor 2. No big deal to replace it..but...
The engine runs fine,no change in fuel mileage. The question is...does this rear O2 sensor have any effect on engine performance?
Oh...I did replace the convertor about 2000 miles ago because it fell apart.The O2 sensor was just swinging in the breeze and did not trigger a CEL.I reused the same O2 sensor. No CEL until a few days ago. The replacement convertor now has an internal rattle when warm.. Thanks
The engine runs fine,no change in fuel mileage. The question is...does this rear O2 sensor have any effect on engine performance?
Oh...I did replace the convertor about 2000 miles ago because it fell apart.The O2 sensor was just swinging in the breeze and did not trigger a CEL.I reused the same O2 sensor. No CEL until a few days ago. The replacement convertor now has an internal rattle when warm.. Thanks