Deciphering the PO446 Code Evaporative Emissions Control System Woes

My engine light came on for this problem (P0446) Evaporative Emission System Vent Control Circuit... additionally i cant seem to pump more that about $.35 worth ... P0446 is not an electrical issue--it indicates a physical blockage in the vent portion of the evap system. I just got the P0446 EVAP MISSION CONTROL SYSTEM VENT CIRCUIT MALF error. From reading different posting here, it could be the VSV which I thought is the ... I keep getting code PO466 Evaporative emission control system vent control circuit. It comes on for a couple days then goes off and then reappears again. 4) Take an air compressor and blow the vent valve out. 5) reinstall and clear the code and it's fixed. Now I know the updated part from gm is ... P0446 is a result of a test failure. The PCM closes the vent solenoid and opens the purge valve. It then monitors the fuel tank pressure sensor. The P0446 code means Evaporative Emission Control System Vent Control Circuit Malfunction. If your car's computer displays the P0446 code, there is something ... This can be caused by a canister close valve being stuck closed, but more likely, it is a restricted air inlet filter at/near the charcoal ... The code P0446 is set when the engine computer recognizes a fault or restriction at the vent control part of the Evaporative emission control system (EVAP). My Code Reader book says EVAP Emission Control System Vent Circuit Malf. Maybe somethings plugged up, if it's not venting, that would explain the extra ...