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:
To start the diesel engine when the engine is cold, it has to be pre-heated before
starting the engine and then have to be warmed up before starting to drive.
1.Make sure the parking brake is applied.
2.Manual Transaxle - Depress the clutch pedal fully and shift the transaxle into
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Components
1. Front seat headrest
2. Front seat headrest guide
3. Front seat back cover
4. Front seat back heater
5. Front seat back pad
6. Front seat back vent mat
7. Front seat back power lumbar
8. Front seat back frame assembly
9. Front ...