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po446

Discussion in 'Chevy Trucks' started by High Ground, Mar 2, 2003.

  1. High Ground

    High Ground Junior Member
    from AL
    Messages: 2

    My service engine soon light is on. The code showing is P0446. The code is Evaporative Emission Control System Vent Control Circuit Open. Any ideas what is going on or any remedies?
     
  2. wyldman

    wyldman Member
    Messages: 3,265

    Not sure on exact year,or specs of your truck,but most have a vent control solenoid in the vacuum line to the charcoal canister.If the circuit is open,then it could be disconnected,bad wiring connection,or a bad solenoid.
     
  3. High Ground

    High Ground Junior Member
    from AL
    Messages: 2

    Forgot the vehicle info, I was in to big of a hurry. The truck is a 2000 Chevy 1500 Z71.