Check engine light - Chevy and GMC Duramax Diesel Forum

2011+ LML Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

 
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post #1 of 10 (permalink) Old 04-25-2012, 08:08 PM Thread Starter
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Check engine light

i replaced my fuel filter the otherday and i keep getting a check engine like code that reads p0191 i think it says fuel rail pressure senser its never done this before any idea whats wrong

2011 duramax cc/lb mocha steel metallic
hns tuner full system exhuast
airad intake
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35inch mtz on 20 inch mkw m-85s
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ranchand bumper
hids low beams and fogs
100 gallon slip tank
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post #2 of 10 (permalink) Old 04-25-2012, 08:30 PM
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My check engine light came on too, but it went off after a couple trips to work.

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post #3 of 10 (permalink) Old 04-25-2012, 09:02 PM
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Quote:
Originally Posted by iangordon View Post
i replaced my fuel filter the otherday and i keep getting a check engine like code that reads p0191 i think it says fuel rail pressure senser its never done this before any idea whats wrong
Clear the code and see if it returns. Could have been from the filter replacement and drop in pressure(air) when first running it.

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post #4 of 10 (permalink) Old 04-26-2012, 07:27 PM
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Verify that the filter is tight.

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post #5 of 10 (permalink) Old 04-27-2012, 05:12 PM Thread Starter
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did all these things kept coming on put a new filter on now no problems

2011 duramax cc/lb mocha steel metallic
hns tuner full system exhuast
airad intake
4 inch rancho
35inch mtz on 20 inch mkw m-85s
3.5% window tint
ranchand bumper
hids low beams and fogs
100 gallon slip tank
weather guard tool box
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post #6 of 10 (permalink) Old 04-28-2012, 05:35 PM
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Did you cut open the filter and see if there as was any visual problem?

2011 GMC 2500 LML CCSB 4x4 SLT
sold 2010 GMC 2500 LMM CCSB 4x4 SLT
sold 2004.5 GMC 2500 LLY ECLB 4x4 SLE
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post #7 of 10 (permalink) Old 05-04-2012, 06:29 PM Thread Starter
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yea i didnt c anything wrong no idea what it was threw a new filter and all is good

2011 duramax cc/lb mocha steel metallic
hns tuner full system exhuast
airad intake
4 inch rancho
35inch mtz on 20 inch mkw m-85s
3.5% window tint
ranchand bumper
hids low beams and fogs
100 gallon slip tank
weather guard tool box
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post #8 of 10 (permalink) Old 05-05-2012, 07:32 PM
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reset fuel filter %

Just replaced mine, didn't have any codes. I know the routine for resetting the engine oil percentage, how do you reset the fuel filter percentage on the DIC?
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post #9 of 10 (permalink) Old 05-06-2012, 06:41 AM
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Same way.

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post #10 of 10 (permalink) Old 12-10-2012, 04:27 PM
 
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Did you ever find a solution to your p0191 problem? Or I guess I should ask did it ever come back?

Last edited by asvet; 12-10-2012 at 04:35 PM.
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