EV 3 - Check Purge Line For Blockage

^ Remove the purge lines leading from the EVAP canister to the engine air intake.

^ Check the lines for blockage by blowing through them.

^ Does air flow freely through the lines?

YES -- Go to EV4. EV 4 - Check Two-Way Check Valve

NO -- Replace the purge lines, check valves, or restrictors that may be partially plugged.