getting codes P 0137 and P 0138

[moosehead]

O2 sensor bank 1 sensor 2 low voltage and high voltage???
do i need to replace sensor? where is it located?

 

[Akedos]

O2 sensor bank 1 sensor 2 low voltage and high voltage???
do i need to replace sensor? where is it located?

Oh man I hate seeing those codes... bad memories... dealership ended up stripping EVERY SINGLE ONE of my O2 sensors out and then tried to charge me for a completely new exhaust system from the heads back because it is a one piece system, cats and all. I went down the road to an exhaust shop, had the newly stipped out bungs filled and new ones welded in for a few bucks a piece.

Anyway, when I had these codes I tried changing one O2 sensor, then the code went to the next bank. Then I changed that one and it went to the next bank, etc. So in my experience, change one = change them all. And MAKE SURE you use MOPAR O2 sensors. I paid TWICE for O2 sensors because the first time I didn't.

 

[Akedos]

Also, there is a diagram/picture on this forum of the O2 sensors. It should be semi helpful if you are familiar with engines.

http://www.jeepforum.com/forum/f28/liberty-diagnostic-prob-p0132-o2-sensor-216111/