Canister Purge Volume Control Valve: Description and Operation

EVAP Two Way Valve and EVAP Bypass Solenoid Valve




The EVAP two way valve is installed between the fuel tank and the EVAP canister line.

The EVAP two way valve sends fuel vapor to the EVAP canister corresponding to the pressure inside the fuel tank. It also relieves excess vacuum in the tank by allowing fresh air to be drawn into the tank through the EVAP canister.

The EVAP bypass solenoid valve opens to bypass the two way valve during the EVAP leak check.