98' xj check engine
04-15-2015, 04:38 PM
#1
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Model: Cherokee
Engine: 4.0
98' xj check engine
My 98 XJ check engine light went off the other day. Ran a test and got PO138(O2 sensor high voltage bank 1 sensor 2) my O2 sensor is brand new and just replaced. Got under the rig to see if any wired was frayed or
Damaged to find nothing. What else should I be looking for? Does sensor 2 meaning it's a problem running to the cat? Any advice would be great.
Thx
Damaged to find nothing. What else should I be looking for? Does sensor 2 meaning it's a problem running to the cat? Any advice would be great.
Thx
04-15-2015, 07:00 PM
#3
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Year: 2000
Model: Cherokee
Engine: 4.0
If you change one then you usually have to change the other as well. And if it's a Bosch then you might as well take it out. NTK is the one people here will recommend and I will too. Changed both my bank 2 sensors with NTKs.
04-15-2015, 07:05 PM
#4
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Year: 1999
Model: Cherokee
Engine: 4.0
You have two oxygen sensors on a 98. Are they both new?
More on P0138.
http://www.obd-codes.com/p0138
More on P0138.
http://www.obd-codes.com/p0138
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