INTAKE MANIFOLD VACUUM INSPECTION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))]
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1. Disconnect the evaporative hose No.3 (purge solenoid valve side) and install the vacuum gauge. (See PURGE SOLENOID VALVE REMOVAL/INSTALLATION [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (E))].)
2. Verify that the intake air hoses are installed securely.
3. Warm up the engine.
4. Measure the intake manifold vacuum while idling (no load) using the vacuum gauge.