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:
The rear seat(s) is equipped with headrests in all the seating positions for
the occupant's safety and comfort.
The headrest not only provides comfort for passengers, but also helps protect
the head and neck in the event of a collision.
WARNING
For maximum effectiveness in case of an accident, ...
The climate control air filter installed behind the glove box filters the dust
or other pollutants that come into the vehicle from the outside through the heating
and air conditioning system. If dust or other pollutants accumulate in the filter
over a period of time, the air flow from the air ve ...