Thread: evap code

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  1. #1 evap code 
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    2006 grand prix code po449 code will not clear with my scan gauge i have dropped the tank and dont know what to repkace??? need help do to phoenix az emissions test car runs fine and gets 30mpg car has 114,000 miles
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  2. #2 Re: evap code 
    GTP Level Member Rico's Avatar
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    Code P0449

    Definition:
    EVAP (Evaporative Emission System) purge/vent solenoid circuit condition

    Probable Causes
    1- Purge or vent solenoids defective
    2- Check connector and wiring
    3- Fuel saturated vapor canister
    4- Failed EVAP vent solenoid
    5- Fuel Cap could be faulty.
    It's a CUMMINS Dodge not a Dodge Cummins
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