Hatchback 4WD F4-1781cc 1.8L (1983)
Evaporative Check Valve: Description and Operation
Fig.36 Two way valve.
This valve controls fuel vapor flow between the charcoal canister and fuel tank. The valve is operated by fuel tank pressure.
Subaru Workshop Service and Repair Manuals
Liquid Vapor Separator, Evaporative System >
< Canister Purge Solenoid|Testing and Inspection
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