Kia Carens: Engine Control System / Variable Intake Solenoid (VIS) Valve Description and operation
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).

Engine condition
|
VIS valve
|
Operation
|
Medium speed
|
Closed
|
Increasing engine performance in low engine speed by reducing intake interference
among cylinders
|
Low / High speed
|
Open
|
Minimizing intake resistance by shortening intake manifold length and increasing
area of air entrance
|

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the OCV connector.
3.
Measure resistance betwee ...
Specification
Item
Specification
Coil resistance (Ω)
30.0 ~ 35.0 [20°C(68°F)]
...
Other information:
Replacement
1.
Remove the front door trim.
(Refer to Front Door - "Front Door Trim")
2.
Remove the front door belt inside weatherstrip (A).
3.
Install in the reverse order of rem ...
1. Turn the low beam on without driver aboard.
2. The cut-off line should be projected in the cut-off line shown in the picture.
3. When aiming the low beam, vertical aiming should be adjusted after adjusting
the horizontal aiming.
4. If head lamp leveling device is equipped, adjust the head lamp l ...