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How Do You Fix Trouble Code P0446?

January 24, 2024 by David Evans

How Do You Fix Trouble Code P0446? Gas caps are relatively inexpensive and are often the fix for code P0446. If the fuel cap didn’t fix it, perform an EVAP system leak check: Pinch off the vent tube to the EVAP Vent Control Valve. Pressurize the EVAP system with an EVAP smoke machine leak checker.

What Is The Purpose Of A Gas Cap?

January 24, 2024 by Kim Nguyen

What Is The Purpose Of A Gas Cap? The cap prevents the leakage of fuel vapours from the filler neck, which can be a major source of hydrocarbon emissions. A leaking or missing gas cap can result in the release of 90 litres of fuel per year into the atmosphere. Why would you need to