VARIABLE BOOST CONTROL (VBC) CHECK VALVE INSPECTION [MZR-CD (RF Turbo)]

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1. Remove the VBC check valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)

2. Blow through port A and verify that the airflows from port B.

• If not as specified, replace the VBC check valve.

3. Blow through port B and verify that the air does not flow from port A.

• If not as specified, replace the VBC check valve.