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    PO 440

    Codes for 1998 Volvo v70

    0  Views: 2065 Answers: 1 Posted: 11 years ago

    1 Answer

    PO440= Canister purge (CP) valve, leakage
    Possible Source(s)
    Blocked EVAP canister.
    Blocked hoses.
    Defective canister purge (CP) valve (permanently open or closed).



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