Unleash the Fuel-Saving Revolution with PO446

I keep getting code po 446 on my 2003 Silverado. I have read that it could be the vent control valve. Any ideas? P0446 is a diagnostic trouble code (DTC) for "Evaporative Emission Control System Vent Control Circuit Malfunction". This can happen for multiple reasons. Disclaimer: Under no circumstances will proclaimliberty2000 be responsible or liable in any way for any content, including but not limited ... Check your purge solenoid, it is probably stuck open. Other possibility is your Evap Canister filter is pluged. ... This DTC tests the evaporative ... The code - P0446: EVAP Emission System vent control circuit. This can get triggered due to a bad connection, faulty canister close valve. General Tech Help - PO446 code and Misfire @ 2,4, and 6 - What is the main problem with trouble code PO446? Emission control? i find this odd since i replaced the vent valve AND filter with brand new items. i also parts cannoned a new gas cap, canister, and purge ... Code P0446 means the car's computer has detected a problem with the EVAP system vent valve. The EVAP system is primarily composed of the gas tank, gas cap, ... How to fix a Toyota P0446 Code: Evaporative Emission Control System Vent Control Circuit Malfunction Possible Causes of a Toyota P0446 Code: ... 3 months later the service engine soon light comes on so i have it scanned at advance auto. 1 code comes up, PO446. Truck seems to run well. No ...