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help with these codes

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Old 02-26-2010, 03:58 PM
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I went to pepboys to check engine light and gave me these codes p0420 catalyst system efficiency below threshold bank 1.

p1416 fuel air montering control.

what kind I do to fix these problems to get rid of the check engine light so I can pass smog. please help
Old 02-26-2010, 05:31 PM
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time for a new catalytic converter(bank 1) call your local chevy dealership,should still be covered under warranty.




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