![I have a 1999 dodge ram 1500 v8 5.2 with a engine code of p0138 o2 sensor bank 1 volts to high first can you tell me I have a 1999 dodge ram 1500 v8 5.2 with a engine code of p0138 o2 sensor bank 1 volts to high first can you tell me](https://f01.justanswer.com/ref/https_w05.dealerconnect.chrysler.com/service/mds2002/serviceInfo/en_US/80570e21.gif)
I have a 1999 dodge ram 1500 v8 5.2 with a engine code of p0138 o2 sensor bank 1 volts to high first can you tell me
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![I have a PO138 code. Truck is running fine except for lower than normal gas miliage. Should I replace the O2 sensor? I have a PO138 code. Truck is running fine except for lower than normal gas miliage. Should I replace the O2 sensor?](https://ww2.justanswer.com/uploads/drivefast1971/2011-01-31_140735_1.gif)
I have a PO138 code. Truck is running fine except for lower than normal gas miliage. Should I replace the O2 sensor?
![2002 dodge ram 1500 5.9L,getting p0138 error code (o2 sensor circuit high voltage bank 1 sensor 2)truck seems to run 2002 dodge ram 1500 5.9L,getting p0138 error code (o2 sensor circuit high voltage bank 1 sensor 2)truck seems to run](https://ww2.justanswer.com/uploads/drivefast1971/2011-04-07_224329_2.gif)
2002 dodge ram 1500 5.9L,getting p0138 error code (o2 sensor circuit high voltage bank 1 sensor 2)truck seems to run
![Keep getting p0138, bank1 sensor2 code. scan tool indicates that aft sensor voltage stays at 1.0v until car is driven at Keep getting p0138, bank1 sensor2 code. scan tool indicates that aft sensor voltage stays at 1.0v until car is driven at](https://ww2.justanswer.com/uploads/quadrin7891/2010-01-10_002133_zzz_dak_02.jpg)