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

Kia Cadenza YG 2016-2025 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.

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

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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