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Air Tightness Inspection

1.Connect a vacuum pump to the VBC solenoid valve port A, and apply vacuum.

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Note

• Even if there is vacuum leakage, the VBC solenoid valve is okay if vacuum increases to –80 kPa {–600 mmHg, –24 inHg} or more.

2.Verify that the vacuum increases to –80 kPa {–600 mmHg, –24 inHg} or more.

• If not as specified, replace the VBC solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD 2.2].)

• If VBC solenoid valve is okay, perform the “Operation Inspection”. (See Operation Inspection.)

Operation Inspection

1.Connect a vacuum pump to the VBC solenoid valve port A, and apply vacuum.

2.Switch the ignition to on.

3.Simulate the VBCV PID to 100% using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [MZR-CD 2.2].)

4.Verify that the vacuum is decreased.

• If not as specified, replace the VBC solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD 2.2].)

• If VBC solenoid valve is okay, perform the “Resistance Inspection”. (See Resistance Inspection.)

Resistance Inspection

1.Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR-CD 2.2].)

2.Disconnect the VBC solenoid valve connector.

3.Measure the resistance between the VBC solenoid valve terminals.

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• If not as specified, replace the VBC solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD 2.2].)