Evaporative Emissions System: Testing and Inspection

Attach a hose to the fuel vapor port (from fuel tank) of the canister and attempt to blow through it. Air should pass into canister. If not, replace the canister. Disconnect the EVAP solenoid electrical connector, attach a hose to the upper port of the canister, and attempt to blow through it. Air should not pass into the canister. If air passes, replace the canister. Reconnect all purge hoses and the solenoid electrical connector.