Legacy GT LTD Sedan AWD F4-2.5L DOHC (1998)
Evaporative Check Valve: Description and Operation
Two-Way Valve
PURPOSE/OPERATION
Allow expansion and contraction of fuel vapor in the fuel tank to flow in and out of the canister. When evaporation gas pressure in the fuel tank
exceeds the specified value, the valve is pressureized to push the spring. This lifts the valve seat so that evaporative gas is discharged to the
canister. When evaporation gas pressure in the fuel tank drops below the specified value, the valve moves to close the valve seat. A pin hole is
provided in the end of the valve to allow fuel vapors to be drawn through the canister into the fuel tank.