P0139 returning code on my Jeep
I recently changed an 02 sensor on my car about a week ago . I drove a little bit over 100 miles with in a week or less and the same code came up any suggestions ??
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Related fault codes
P0139
Comments (3)
Anonymous
2019-05-02 12:51
It’s the only code My car has I used a Bosch sensor And no exhaust leak
Anonymous
2019-05-03 11:02
My thoughts use a jeep sensor OR a NTK. Perform powertrain verification * a hail mary - unlikely but I will mention, Use a scanner and observe the signal return, keep in mind there is a 1volt bias built into system, so readings will appear high. * "NOTE: When replacing an O2 Sensor, the PCM RAM memory must be cleared, either by disconnecting the PCM C-1 connector or momentarily disconnecting the Battery negative terminal."
Are there ANY other codes? Did you use a jeep or a NTK brand sensor? Yeah it matters. Any exhaust leak?