Posts Tagged: vent valve

P0446 Fix: Evaporative Emission Control System Vent Control

How to fix a P0446 Evaporative Emission Control System Vent Control Circuit Malfunction The evaporative emission control system checks to make sure there are no leaks in the lines that run from the gas tank to the charcoal canister and up to the engine. It also checks to make sure the gas cap is sealing correctly. One common trouble code is a P0446 Evaporative Emission Control System Vent Control Circuit Malfunction What the vent solenoid does When you fill your car with gas, the fuel vapors are absorbed by the … Read More