Check engine light on code P0191

[Wisenheimer]

If you have a multimeter and the service manual it tells you how to test for a faulty sensor. It’s pretty easy.


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[Matthew77515]

Well after changing the fuel filter and driving about 40miles I was able to clear the code and has stayed cleared so far hopefully it was just a dirty filter! Bloom bloom 88 my truck ran fine when the code was on I didn’t notice any change to it.

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[bloombloom88]

Well after changing the fuel filter and driving about 40miles I was able to clear the code and has stayed cleared so far hopefully it was just a dirty filter! Bloom bloom 88 my truck ran fine when the code was on I didn’t notice any change to it.

What did your filter look like?

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[Matthew77515]

What did your filter look like?

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It was black!

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[bloombloom88]

It was black!

Yuck! That could have been what caused it.

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[Power247]

Well after changing the fuel filter and driving about 40miles I was able to clear the code and has stayed cleared so far hopefully it was just a dirty filter! Bloom bloom 88 my truck ran fine when the code was on I didn’t notice any change to it.

Man I hope that was all it was. Keep up posted, especially if the code pops again.

Greg
2012 | RAM 2500 | CCSB | Custom tuned by Double R Diesel
2016 | Heartland Pioneer | DS310

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