Spectrum L4-91.5 1.5L (1989)
Vent Switching Valve, Evaporative Emission Control (EEC): Description and Operation
This is an electrically operated solenoid valve built into the carburetor. When the engine is not running, the valve opens to allow fuel vapor to enter the
charcoal canister. When the engine is running, the valve closes to block the flow of ambient air from the charcoal canister to the carburetor.