Kia Rio: Engine Control System / Variable Intake Solenoid (VIS) Valve
Specifications
Item
|
Specification
|
Coil resistance (Ω)
|
30.0 ~ 35.0 [20°C(68°F)]
|
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
|
Schematic diagrams
Repair procedures
| 1. |
Turn the ignition switch OFF.
|
| 2. |
Disconnect the VIS valve connector.
|
| 3. |
Measure resistance between VIS valve terminals 1 and 2.
|
Specification : Refer to "Specification"
|
|
| 1. |
Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
|
| 2. |
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
|
| 3. |
Remove the electronic throttle body control (ETC) module.
(Refer to Engine Control System - "ETC (Electronic throttle body control)
System")
|
| 4. |
Disconnect the variable intake solenoid valve connector (A).
|
| 5. |
Remove the variable intake solenoid valve (A).
|
| 6. |
Disconnect the vacuum hoses (B) from the valve.
|
| 7. |
Remove the variable intake solenoid valve.
|
| • |
Install the component with the specified torques.
|
| • |
Note that internal damage may occur when the component is dropped.
In this case, use it after inspecting.
|
| • |
Be careful of foreign material not to flow into the valve.
|
|
| 1. |
Installation is reverse of removal.
|
Specifications
Specification
CVVT Oil Control Valve
(OCV)
[Bank 1 / Exhaust]
Item
Specification
Coil Resistance (Ω)
6.9 ~ 7. ...
Description and operation
Description
Continuous Variable Valve Timing (CVVT) system advances or retards the valve
timing of the intake and exhaust valve in accordance with the ECM con ...
Other information:
Components and components location
Component Location
1. Rear door trim
Repair procedures
Replacement
Put on gloves to protect your hands.
...
Components and components location
Component Location
1. Center pillar lower trim
2. Center pillar upper trim
Repair procedures
Replacement
[Center pillar lower
trim]
...
CVVT Oil Control Valve (OCV)
Variable Force Solenoid (VFS)