Operation Inspection
- Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
- Remove the air hose. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
- Disconnect the vacuum hose from the variable tumble shutter valve actuator.
- Connect a vacuum pump to the variable tumble shutter valve actuator.NOTE:
- Covered with a hood, the rod of the variable tumble shutter valve actuator cannot be seen from above. Use a mirror from under it to check the operation of the variable tumble shutter valve.
- Check if the rod operates correctly as stated in the table when a gradual negative pressure is applied to the variable tumble shutter valve actuator.
Vacuum
kPa {mmHg, inHg}Rod movement Below -2.7 {-21, -0.9} No operate Above -33.4 {-251, -9.89} Fully pulled - When it is not possible to confirm it, replace the intake manifold. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
- When the variable tumble shutter valve actuator cannot be confirmed, check for any incorrect connections or breakage of the vacuum hose.