1. Remove the charcoal canister. (See CHARCOAL CANISTER REMOVAL/INSTALLATION [L8, LF].)
2. Plug the atmosphere side and purge solenoid valve side of the charcoal canister.
3. Inspect for air leakage when blowing air by mouth from the fuel tank side.
4. Install the charcoal canister. (See CHARCOAL CANISTER REMOVAL/INSTALLATION [L8, LF].)