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red dragon
red dragon 4/1/2010
2000 Toyota Camry LE 4 Cyl 2.2L - Engine
How can this be checked / fixed ?
P0446 Evaporative Emission Control System Vent Control Circuit Malfunction
2 Answers
  • ram2209
    ram2209 4/1/2010
    SOUNDS LIKE IT'S YOUR EVAP, PURGE CONTROL VALVE. i suggest getting your self a HAYS repair manual to find its exact location. you can get the manual at most auto parts stores.
  • HouseCallAuto
    HouseCallAuto 4/1/2010
    Replace the charcoal canister. It comes from Toyota with the new electrical valves. The valve gets stuck because charcoal granules get stuck in the valve. You can (in a pinch) change just the valves, the CCV and VSV (Canister Closed Valve and the Vacuum Switching Valve) but the problem will repeat when you least expect it. When you replace the canister it is imperative that you blow out all attaching lines to rid them of granular charcoal contaminant.

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