VARIABLE DYNAMIC EFFECT INTAKE-AIR (VDI) ACTUATOR INSPECTION [13B-MSP]

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1. Disconnect the VDI actuator vacuum hose.

2. Install the vacuum pump to the VDI actuator.

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3. Verify that the rod moves as indicated in the table below when gradually applying a vacuum to the VDI actuator.

• If it fails, replace the VDI valve. (See INTAKE MANIFOLD DISASSEMBLY/ASSEMBLY [13B-MSP].)

Rod movement

Vacuum

(kPa {mmHg, inHg})

Rod movement

–4.0 {–30, –1.2}

Starts to move

–25.3 {–190, –7.47}

Fully pulled

–1.3 {–9.8, –0.38}

Fully returned