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Old Mar 23, 2012 | 01:44 PM
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Please help
I have a 2005 C6 with cam, cai, exhaust, and the car runs good. However, I keep getting an intermittent SES light. Most of the time I just re-tighten the gas cap and it goes away on about 3 startup cycles. I have bought 2 new gas caps but keep having the problem. What harm would it do to just have my tuner shut off the evap system and/or what else should I try?

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Old Mar 23, 2012 | 01:45 PM
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Best bet would be to pull the codes and make sure you are chasing the right thing.
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Old Mar 23, 2012 | 02:43 PM
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Originally Posted by TJay74
Best bet would be to pull the codes and make sure you are chasing the right thing.


Without codes you have no idea whether or not you are even doing anything playing with the gas cap. There are hundreds of items that can cause the CEL to light.

Bill
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