EVAP Canister Purge Port Vacuum Check
EVAP CANISTER PURGE PORT VACUUM CHECKChecking Condition
Engine coolant temperature: 80 °C - 95 °C (176 °F - 205 °F)
1. Disconnect the vacuum hose from the throttle body EVAP canister purge hose fitting and connect a vacuum gauge.
2. Start the engine and check that, after raising the engine speed, vacuum remains fairly constant.
NOTE: If there is no vacuum, it is possible that the throttle body port may be clogged and require cleaning.