Kia Sportage: 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
|
OFF
|
Increasing engine performance in low engine speed by reducing intake interference
among cylinders
|
Low / High speed
|
ON
|
Minimizing intake resistance by shortening intake manifold length and increasing
area of air entrance
|

Components
1. Variable Intake Solenoid (VIS)
Valve
2. Variable Intake Solenoid (VIS) Actuator
3. Variable Intake Solenoid (VIS)
Flap
4. Vacuum Hose ...
Circuit Diagram
Harnness Connector
...
Other information:
When driving
ESC should be turned on for daily driving whenever possible.
To turn ESC off while driving, press the ESC OFF button while driving
on a flat road surface.
WARNING - Operating ESC
Never press the ESC OFF button while ESC is operating (ESC indicator light
blinks).
If ESC i ...
This multi-purpose passenger vehicle is defined as a Sports Utility Vehicle (SUV).
SUV’s have higher ground clearance and a narrower track to make them capable of
performing in a wide variety of off-road applications. Specific design characteristics
give them a higher center of gravity than ...