Leak Detection Valve: Description and Operation

CANISTER VENT SOLENOID

Typical Canister Vent (CV) Solenoid:

During the EVAP Leak Check Monitor, the canister vent (CV) solenoid (Figure 105) seals the EVAP canister from atmospheric pressure. This allows the EVAP canister purge valve to obtain the target vacuum in the fuel tank during the EVAP Leak Check Monitor.