EV 1 - Canister Purge Solenoid Function
EVAP Canister Purge Solenoid:
^ Disconnect the vacuum hoses from ports A and B, and the electrical connector from the Evaporative Emission (EVAP) canister purge solenoid.
^ Blow air through port A and verify that no air exits from port B.
^ Apply 12 volts and ground as shown.
^ Blow air through port A and verify that air flows from port B.
^ Does the solenoid function properly?
YES -- Go to EV2. EV 2 Check For Liquid In Carbon Canister
NO -- Replace the EVAP canister purge solenoid.