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Old 04-22-2013, 09:15 PM   #18
scrming
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Originally Posted by efpardo View Post
Anybody still getting these codes after maybe a long winter slumber?
I'm getting a p2099. Shop can't find any leaks and cleared it. Over the weekend it came back. Could this be a fuel problem? Carbon on the valves?
Possibly:

Bad O2 sensor
The high flow cats
maybe bad gas.
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Old 04-26-2013, 03:03 PM   #19
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Thinking it's the cats. I hate seeing that engine light, but at least it goes away at 35mph. Hidden, by the speedometer needle.
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Old 05-21-2013, 07:03 PM   #20
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Quote:
Originally Posted by efpardo View Post
Anybody still getting these codes after maybe a long winter slumber?
I'm getting a p2099. Shop can't find any leaks and cleared it. Over the weekend it came back. Could this be a fuel problem? Carbon on the valves?

efpardo,

Any updates on the p codes? Did you have this concern inspected? We would appreciate any updates you have on this situation when you get a chance.

William R.
Chevrolet Customer Care
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