po138 to po141 problem - DodgeForum.com


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po138 to po141 problem

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Old 09-12-2010, 04:22 PM
kccisco
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Default po138 to po141 problem

on my 03 ram with the hemi i had had the code read out po138 only so i ordered up a new o2 sensor and put it in. the truck drove fine but after about 50miles the check engine light came on so i hooked up my reader to it and now it only says po141. i thought a new sensor would fix the problem but now with the new sensor im reading a different code with the same sensor. any ideas?
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Old 09-12-2010, 04:31 PM
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P0141 Is a 02 heater circuit malfunction bank 1 sensor 2. Sounds like its just a faulty sensor. I would take it back and get a new one if the sensor is still under warranty.
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Old 09-12-2010, 06:08 PM
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Bad thing about buying replacement parts that are electronic is they are yours once you replace them. But if it has a warranty then you should be good to go. If you add the new one on and still get a code after you reset the PCM then you know you have other issues.
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Old 09-13-2010, 01:27 AM
kccisco
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thx the sensor is only 2days old so it shold still be under waranty. well the sensor was a little diferent compared to the factory sensor in that the cable was shorter and the sensor reader that actauly stuck into the the exhaust was a little different, dont no if that was because it was a different brand or the wrong sensor but it plugged in all the same and i noticed a fuel economy boost until the new code showed

Last edited by kccisco; 09-13-2010 at 01:34 AM.
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Old 09-13-2010, 07:51 AM
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After market may look different than OEM. That is normal. But swap them out and see what you get and go from there if needed.
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