Kia Rio: 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).
| 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 |
Specification
Item
Specification
Coil resistance (Ω)
30.0 ~ 35.0 [20°C(68°F)]
...
See also:
Failure Diagnosis
1.
In principle, ESC and TCS controls are prohibited in case of ABS
failure.
2.
When ESC or TCS fails, only the failed system control is pr ...
Positive Crankcase Ventilation (PCV) Valve: Operation Principle
...
Driver Airbag (DAB) Module and Clock Spring Inspection
Driver Airbag (DAB)
If any improper parts are found during the following inspection, replace
the airbag module with a new one.
...
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