| dirtymax743 |
12-15-2012 03:15 AM |
lmm duramax code p0191
okay i have a question about my 2009 duramax lmm i started it up one morning and let it warm up and im in my garage and i hear it rev up and start knocking the truck had been acting like it had a dead batteries a few days leading up to this so i started driving it down the road it had a check engine light on it wouldnt go over 1k rpms so i had it towed to the dealership they said it was a code p0191 and that it could have cuz one of my battery cables was loose so ive had it home for a couple weeks and it doesnt seem to be running exactly right i was going up a hill and i was getting on it pretty good and then i let off the gas and it seems to be starved for fuel it just doesnt seem to be running exactly right like it should have more power i was wondering if the dealership just erased the code and sent me on my way i was looking at the code on the internet and it says it has to do with fuel rail pressure i was wondering how to figure out exactly whats going on? im gonna try getting a new fuel filter tomorow and see if the helps at all anybody have any input or the same problem id appreciate it thanks
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