VARIABLE DYNAMIC EFFECT INTAKE-AIR (VDI) ACTUATOR INSPECTION

1. Disconnect the VDI actuator vacuum hose.

2. Install the vacuum pump to the VDI actuator.

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 actuator. (See INTAKE MANIFOLD REMOVAL/INSTALLATION.)

Rod movement

Vacuum (kPa {mmHg, inHg})	Rod movement
-3.6 {-27.0, -1.1} or more	Starts to move
-27.9 {-209.2, -8.2} or less	Fully pulled
1.2 {9.0, 0.4} or more	Fully returned