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2003 Pontiac Aztek Question: check engine light on



Visitor, Chicago, IL, March 08, 2010, 21:02

what may cause my check engine light to come on the codes is p0449

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  • Answer #1

    March 20, 2010, 16:50

    P0449: Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction.
    The Control Module detected an incorrect voltage in the EVAP canister vent valve control circuit.

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