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multiple check engine codes


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Posted

Where to start my 07 silverado 5.3 hasn't been driven maybe 15 miles in the last 6 months. I do start is once ever two weeks I just don't drive it. Well my brother took it today and called me saying it was shifting hard and the check engine light was on. p0326 p0324 p0335 p0336

The crankshaft position sensor was changed in 2009. I have not done anything to it yet. I need to wash under to hood has a lot of gravel dust from where it's been seating. Also I have my tuner programed for economy mode and about 4 days ago I installed a tracker in the obd port from liberty mutual.

Posted

I'd remove the tracker for starters. Maybe even remove the tune and back to stock. Put fresh fuel in it and drive it a bit. After setting you may have damage to certain wiring from rodents etc.... Check thoroughly

Posted

Was read on another site that a low battery could cause the check engine light code. So I cleared the codes and returned the programer back to stock and drove it. It drove fine so I reinstalled the tracker and no codes came back.

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