VARIABLE INTAKE AIR SHUTTER VALVE ACTUATOR INSPECTION [MZR 2.0 DISI i-stop]

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Operation Inspection

1. Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)

2. Remove the air hose. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)

3. Disconnect the vacuum hose from the variable intake air shutter valve actuator.

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4. Connect a vacuum pump to the variable intake air shutter valve actuator.

Note

• Covered with a hood, the rod of the variable intake air shutter valve actuator cannot be seen from above. Use a mirror from under it to check the operation of the variable intake air shutter valve.

5. Check if the rod operates correctly as stated in the table when a gradual negative pressure is applied to the variable intake air shutter valve actuator.

Vacuum

kPa {mmHg, inHg}

Rod movement

Below –2.7 {–20, –0.8}

Not operate

Above –33.4 {–251, –9.86}

Fully pulled

Vacuum kPa {mmHg, inHg}	Rod movement
Below –2.7 {–20, –0.8}	Not operate
Above –33.4 {–251, –9.86}	Fully pulled

• When it is not possible to confirm it, replace the intake manifold. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].)

• When the variable intake air shutter valve actuator cannot be activated even though the operation of the rod can be confirmed, check for any incorrect connections or breakage of the vacuum hose.