O2 Sensor Heater

[Moosejaw]

Does anyone know if there is a fuse that controls the O2 sensor heaters on a 2011 3.8 L Jeep Wrangler JK. When I use the scanner, it said that all four O2 sensor heaters are the issue and I had just replaced all four O2 sensors less than a month ago.

 

[BLACKJKU]

I don't know if there's a fuse but just wandering what Brand of O2's you used? These JK's are pretty picky on the electronic parts that are used on them.

 

[Cimmerian]

If you don't use NGK or Mopar (which are NGK), they're more than likely going to throw codes.

 

[Moosejaw]

I don't know if there's a fuse but just wandering what Brand of O2's you used? These JK's are pretty picky on the electronic parts that are used on them.

I just replaced O2 sensors that were maybe 7 months old with 4 new NTK sensors and I have check the grounds and they seem to be tight and no corrosion. Local mechanic said there could be a fuse since the scanner says that it’s all four O2 sensor heaters, so was wondering if anyone had the same issue and knew or a fuse. Thanks