Leak Detection Solenoid: Description and Operation

OPERATION
- The evaporative emission ventilation solenoid is a ON - OFF type solenoid valve and installed to monitor the leak in the fuel tank and purge line. Normally it opens the atmospheric release opening and closes during the leak monitoring.
- Through the MFI relay the battery power is supplied to the evaporative emission ventilation solenoid. If the ECM switches on the power transistor in the module, the current flows in the coil and close the EVAP canister atmospheric release opening.