Kia Cadenza: Engine Control System / CVVT Oil Control Valve (OCV) Repair procedures

Kia Cadenza YG 2016-2024 Service Manual / Engine Control / Fuel System / Engine Control System / CVVT Oil Control Valve (OCV) Repair procedures

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the OCV connector.
3.
Measure resistance between the OCV terminals 1 and 2.
4.
Check that the resistance is within the specification.

Specification: Refer to “Specification”

Removal
[CVVT Oil Control Valve (Intake)]
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Remove the intake manifold.
(Refer to Engine Mechanical System - “Intake Manifold”)
3.
Disconnect the CVVT oil control valve connector (A).
4.
Remove the installation bolt (B), and then remove the valve from the engine.
[Bank 1]

[Bank 2]

[CVVT Oil Control Valve (Bank1/Exhaust)]
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Disconnect the CVVT oil control valve connector (A).

3.
Remove the surge tank.
(Refer to Engine Mechanical System - "Surge Tank")
4.
Remove the cylinder head cover.
(Refer to Engine Mechanical System - “Cylinder Head Cover”)
5.
Remove the installation bolt (A), and then remove the valve from the engine.

[CVVT Oil Control Valve (Bank2/Exhaust)]
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Disconnect the CVVT oil control valve connector (A).

3.
Remove the cylinder head cover.
(Refer to Engine Mechanical System - “Cylinder Head Cover”)
4.
Remove the installation bolt (A), and then remove the valve from the engine.

Inatallation
   
Install the component with the specified torques.
Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.
   
Apply the engine oil to the valve O-ring.
   
Exactly distinguish the color of the valve and harness connectors in bank 1 and 2 when installing, or the engine will operate abnormally (Refer to the table below).
Items
Component Side
Harness Side
Bank 1 (RH)
Grey
Bank 2 (LH)
Black

1.
Install in the reverse order of removal.

CVVT oil control valve installation bolt:
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

CVVT Oil Control Valve (OCV) Schematic Diagrams
Circuit Diagram ...

Variable Intake Solenoid (VIS) Valve Description and Operation
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