1- Loose gas cap
2- Vacuum line off of fuel tank or evaporative charcoal canister
3- Bad evaporative vent solenoid
4- Bad wires to evap vent solenoid Its most likely the evaporative charcoal canister Zak.
Trouble code P0446 means: Evaporative Emission System Vent Control Circuit
Trouble code P0446 means: Evaporative Emission System Vent Control Circuit
evaporative emission control system ,vent system performance code p0446
Trouble code P0446 means: Evaporative Emission System Vent Control Circuit
Trouble code P0446 means: EVAP Vent System Performance
Trouble code P0446 means: EVAP Vent System Performance
Trouble code P0446 means:Evaporative emission control system vent control circuit malfunction
Trouble code P0446 means: EVAP Vent System Performance
Trouble code P0446 means:Evaporative emission control system vent control circuit malfunction
The car code p0446 is a faulty vent valve. To fix this problem, the vent valve will need to be replaced.
Trouble code P0446 means: Evaporative Emission System Vent Control Circuit
Trouble code P0446 means: EVAP Vent System Performance