Checking Condition

Engine coolant temperature: 80~95°C (176~205°F)

1. Disconnect the vacuum hose from the throttle body EVAP Canister purge hose fitting and connect a vacuum pump.
   Fig 1: Checking Evaporative Emission Canister Purge Solenoid Valve With Vacuum Pump

   Courtesy of HYUNDAI MOTOR CO.
2. Start the engine and check to see that, after increasing the engine speed, vacuum rises fairly constantly.
   NOTE: If there is no vacuum, it is possible that the throttle body port may be restricted and may require cleaning.