Probably the vent control solenoid by the fuel tank.
Trouble code P0446 means:Evaporative emission control system vent control circuit malfunction
Evaporative Emission Control System Vent Control Circuit Malfunction, look for faulty vent valve or a short on the vent control circuit.
Trouble code P0446 means:Evaporative emission control system vent control circuit malfunction
Trouble code P0446 means:Evaporative emission control system vent control circuit malfunction
Trouble code P0446 means:Evaporative emission control system vent control circuit malfunction
EVAP Emission Control System Vent Circuit Malfunction.
error code o0125 ford explorer 2002
Trouble code P0446 means: EVAP Vent System Performance
Trouble code P0446 means: Evaporative Emission System Vent Control Circuit
Trouble code P0446 means: EVAP Vent System Performance
Trouble code P0446 means:Evaporative emission control system vent control circuit malfunction
Trouble code P0446 means:Evaporative emission control system vent control circuit malfunction