A1 - Canister Hose And Inlet Tube Blockage Test

^ Test canister evaporative emission hoses and inlet nipple for blockage.

^ Are evaporative emission hoses or inlet nipple blocked?

YES -- Remove blockage. Go to A2. A2 - Evaporative Emission System Blockage Test

NO -- Go to A6. A6 - Flow Test (Fuel Tank Filler Cap Installed)