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System Test

Remove fuel filler cap. Disconnect vent hose between charcoal canister and fuel tank. Blow air toward canister. Ensure air flows freely into canister. Blow air toward fuel tank. Ensure air flows into tank with a slight resistance from 2-way valve. See Fig 1 , Fig 2 , Fig 3 , Fig 4 or Fig 5 .

Fig 1: Fuel Evaporation System (Justy)
G118408Courtesy of SUBARU OF AMERICA, INC.
Fig 2: Fuel Evaporation System (Legacy Non-Turbo)
G92H27000Courtesy of SUBARU OF AMERICA, INC.
Fig 3: Fuel Evaporation System (Legacy Turbo)
G92I27001Courtesy of SUBARU OF AMERICA, INC.
Fig 4: Fuel Evaporation System (Loyale)
G118409Courtesy of SUBARU OF AMERICA, INC.
Fig 5: Identifying Fuel Evaporation System (SVX)
G92J27002Courtesy of SUBARU OF AMERICA, INC.