CEL code 0138

[mehbohdi]

Just bought 2001 TJ Have CEL 1/2 sensor reading high voltage? I get this part Which sensor? I know there is 4 of them, 2 pre cat, 2 post cat, How are the locations defined in reference to the code. I don't want to replace all, but I might. there is such a disparity in price. I've seen $20-$84.00 ea. I've read don't buy Bosch, get NTK or Mopar? Any truth to this? I've always had good luck with Bosch products. Thanks:-|

 

[Bounty__Hunter]

Bank 1 is toward the front of the engine, cylinders 1-3. Sensor 2 is the downstream sensor, further from the motor.

 

[wwch99tj]

I'd recommend NTK brand sensors, I've had trouble with the bosch that I put in not heating up fast enough and tripping a code every once a while
Www.Rockauto.com has the best prices on them

Sent from my DROID 2 Global

 

[mehbohdi]

Thanks for info. I'm going to start with one sensor and go from there.

 

[JPNinPA]

What bounty hunter said. Yes there is truth to the Bosch thing but some have luck. I get mine from the dealer. Bosch makes many good products it is just these do not work well with jeeps.