INTAKE-AIR SYSTEM MANIFOLD VACUUM INSPECTION[ZJ, ZY, Z6]
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1. Verify that the intake air hoses are installed securely.
2. Warm up the engine.
3. Disconnect the vacuum hose connecting the intake manifold and the purge solenoid valve (purge solenoid valve side) and install the vacuum gauge.
4. Measure the intake manifold vacuum while idling (no load) using the vacuum gauge.
5. After measuring the intake manifold vacuum, install the vacuum hose to the purge solenoid valve as shown in the figure.
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