Kia Carnival (2007 year). Manual — part 77
Variable Intake Solenoid
Valve
(VIS)
2007 > 2.7L V6 GASOLINE >
INSPECTION
FUNCTION AND OPERATION PRICIPLE
Variable Intake manifold Solenoid (VIS) valves are installed on surge tank (VIS Valve #1) and intake manifold (VIS
Valve #2). These VIS valve #1 and #2 control vacuum modulators which activate valves in surge tank and intake
manifold. These valves are opened or closed by PCM according to engine condition (Refer to below table).
Engine Condition
VIS Valve #1
(Surge Tank)
VIS Valve #2
(In-manifold)
Operation
Low
Speed
Closed
Closed
Increasing engine performance in low engine speed by
reducing intake interference among cylinders
Medium
Speed
Open
Open or closed
Increasing intake efficiency
High
Speed
Open
Open
Minimizing intake resistance by shortening intake manifold
length and increasing area of air entrance
SPECIFICATION
Item
Specification
Coil Resistance (
Ω)
29.0 ~ 35.0
Ω at 20°C (68°F)
CIRCUIT DIAGRAM
COMPONENT INSPECTION
1. Turn ignition switch OFF.
2. Disconnect VIS Valve connector.
3. Measure resistance between VIS Valve #1,2 terminals 1 and 2.
4. Check that the resistance is within the specification.
Specification: Refer to SPECIFICATION.
Electronic Throttle
System
(ETS)
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