Empowering Drivers Understanding and Resolving the PO446 Code

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 ... 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 ... The code is for a blockage in the ventilation system though, which should be either a clogged filter in the canister, a bad shutoff valve or a ... This code is directly connected to the vent valve, vent valve wires, and vent valve tube. So you'll see it if there's wiring issues, a leak in the tube, or ... I had a check engine light with P0446 code and no hiss when opening the gas cap so I started with changing the gas cap - no change P0446 Evaporative Emission Control System Vent Control malfunction. ... My car has been throwing this code for awhile, and i can't figure out why. The code reads Evaporative Emission Control System Vent Control Circuit Malfunction, but I've come to believe that any of the EVAP codes can be a result of the ... P0446 EVAP Vent Problem. Getting The Parts Store To Give You Codes Is Not Fixing The Issue.. 36K views · 2 years ago #automotiverepair ... P0446 means the vent valve in the EVAP system is malfunctioning. Our expert mobile mechanics can diagnose and fix your P0446 trouble code wherever you are. It could be as simple as the gas cap not seating correctly or could be, like in my case, the fuel line was rusted and leaking pressure and gas.