Pontiac G6 P0011 Code

Asked by Feb 09, 2015 at 12:15 PM about the 2007 Pontiac G6 Base

Question type: Maintenance & Repair

I have a Pontiac g6 2007 with 98k miles.  About 3 months ago I had an oil change
were I switch to normal oil from what I had been using which was synthetic high
mileage.  ever since then the check engine light has gone off and on.  Car runs fine,
have not had and issues or heard noises.   Just had a oil change yesterday, and went
back to high mileage synthetic.  engine light went off this morning but then came back

Any ideas?

2 Answers


I am assuming you have a 2.4L 4 cyl engine. The code is related to the camshaft timing, they have a variable cam timing system and the correct oil is critical. GM does not recommend any additive like what may be present in your high mileage oil. Also you did not mention the viscosity? GM recommends 5w30 only. Hopefully the correct oil will do it but it may also be caused by excessive timing chain slack a bigger problem. It is less likely to be the actual cam shaft sensor but still possible and easier and cheaper than doing a timing chain.


From your description, I'm going with the oil viscosity as acauto suggested. It typically is not the type of oil (synthetic, blend, etc) but make sure whatever you use complies with GM's viscosity and API recommendation.

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