Canister Inspection

1. Disconnect the four hoses from the EVAP canister.
2. Blow air into the tank port A (3) of the EVAP canister. There should be no restriction of air flow through the EVAP canister and out of the purge port (2), the tank port B (1), and the air port (4).
3. Replace the EVAP canister if the EVAP canister fails the above check.
4. Connect the four hoses to the EVAP canister.