Other information:
Description
Variable Intake manifold Solenoid (VIS) valve is installed on the intake manifold.
The VIS valve controls the vacuum modulator which activates a valve in the intake
manifold. The ECM opens or closes this valve according to engine condition (Refer
to below table). ...
Inspection
1.
Turn the ignition switch ON.
2.
Connect the KDS/GDS.
3.
Flash an intensive light onto the photo sensor using a lamp, and check
the change in output voltage.
4.
...