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P0446 Diagnostic Trouble Code Discussion for October 2011

EVAP Vent System Performance

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Trouble Ticket Help Requests for DTC P0446
Help Request Posted
2006 Suzuki Reno 2.0L Evap VIN: KL5JD66Z06
P0446: EVAP Vent System Performance. A constant pending p0446. Then mil lights up. Replaced mentioned parts. Checked for blockages, found none. Smoked car, no leaks. Good voltage to vent solenoid. This one is a head scratcher! i can only check ecm with global obd2 scanner. I dont have manufacture...
October 10, 2011
2001 Buick Century Custom 3.1L MIL Lamp on VIN: 1G4WE52J21
P0446: EVAP Emission Vent System Performance. P0446 present. Used Versus on vent and purge circuits. ok. Has new cap, filler neck and vent valve. checked for restrictions in vent lines. Smoked system for leaks.
October 30, 2011
2001 Toyota Avalon XL 3.0L MIL Lamp on VIN: 4T1BF28B91
P0446: EVAP Vent Control Solenoid Circuit Malfunction. ... reoccuring code p0446. I have replaced the charcoal canister, canister closed valve, and gas cap. There are no leaks found on this system with smoke machine-less than .020 on meter indicated and no visible leaks. The question is two fold: The canister inst...
October 31, 2011