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Home >> Subaru >> 1992 >> Justy Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Emission Systems & Sub-Systems >> Fuel Evaporation >> Charcoal Canister

Charcoal Canister

  1. Remove vacuum hose from canister purge vent port (main purge vent on turbo). See Fig 1 . Blow air into canister purge vent port. Airflow will be blocked if valve is operating properly.
  2. Remove hoses from canister's fuel tank and carburetor ports. Blow air into each port. Ensure air flows into canister.
  3. On Turbo models, remove secondary purge hose. Blow into hose. Air should flow with a slight resistance.
Fig 1: Identifying Charcoal Canister Hose
G118411Courtesy of SUBARU OF AMERICA, INC.