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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
where is the evaporative emission system vent control circuit in chevy impala (200)
Trouble code P0446 means: Evaporative Emission System Vent Control Circuit
Evaporative Emission Control system vent control Circuit po446 code
Trouble code P0446 means:Evaporative emission control system vent control circuit malfunction
Evaporative Emission Control System Vent Control Circuit Malfunction
EVAP Emission Control System Vent Circuit Malfunction.
Trouble code P0446 means:Evaporative emission control system vent control circuit malfunction
The circuit consists of the pcm the wiring and the vent solenoid itself. If you have a trouble code setting which says there is a circuit fault, it means that there is a problem with something in the circuit. The most likely culprit is the vent solenoid which should be in the left rear of the vehicle behind the wheel opening shield. The next most likely culprit would be a broken or corroded wire between the computer, and the vent solenoid.
install updated vent control solenoid valve and jumper harness.