Kia Stinger CK Quiz
Engine Control System/Fuel System

CVVT Oil Control Valve (OCV) [Bank 1/Exhaust]

In this manual: Engine Control System/Fuel System
General Information — 8Maintenance — 27Engine Mechanical System — 47Engine Electrical System — 19Emission Control System — 12Engine Control System/Fuel System — 51Automatic Transmission System — 34All-Wheel Drive (AWD) System — 7Drive Shaft and Axle — 15Suspension System — 25Steering — 8Restraints — 19Brake System — 22Body (Interior and Exterior) — 47Front Seat Belt — 63Body Electrical System — 99Windshield Wiper/Washer — 11Heating, Ventilation, and Air Conditioning — 32
9steps
~54min
2/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 9

Specifications

Specification

Item Specification
Coil Resistance (Ω) 6,9–7,9 [20 °C]

Description and Operation

Description

The Continuously Variable Valve Timing (CVVT) system advances or retards the exhaust valve timing according to the control signal from the ECM, which is calculated based on engine speed and load.

CVVT control provides valve overlap or underlap, which in turn improves fuel economy, reduces exhaust emissions (NOx, HC), and improves engine performance by reducing pumping losses, creating an internal exhaust gas recirculation effect, improving combustion stability, increasing volumetric efficiency, and increasing expansion work.

This system consists of the following:

- CVVT Oil Control Valve (OCV), which supplies engine oil to the cam phaser or shuts off engine oil to the cam phaser according to the PWM (Pulse Width Modulation) control signal from the ECM,

- and the Cam Phaser, which changes the camshaft phase using hydraulic pressure from the engine oil.

Engine oil flowing from the CVVT oil control valve changes the camshaft phase in the advance direction (intake advance / exhaust retard) or in the opposite direction (intake retard / exhaust advance) relative to engine rotation, by rotating the rotor connected to the camshaft inside the cam phaser.

Circuit Diagrams

Wiring Diagram

Harness Connector

Repair Procedures

Inspection

Coil Resistance

  1. Turn the ignition off.

  2. Disconnect the OCV connector.

  3. Measure the resistance between terminals 1 and 2 of the OCV.

  4. Make sure the resistance is within specification.

    Specification: 6.9–7.9 Ω [20 °C]

Valve Operation

  1. Remove the oil control valve.

    (Refer to CVVT Oil Control Valve - Removal)

  2. Make sure the valve operates properly when battery voltage is applied to terminals 1 and 2 of the valve connector.

    Specification: Operation

Removal

  1. Turn the ignition switch OFF and disconnect the negative (-) battery terminal.

  2. Disconnect the CVVT oil control valve connector (A).

  3. Loosen the installation bolt (B) and remove the valve from the engine.

    CVVT oil control valve mounting bolt:

    9,8–11.8 N·m

    [Bank 1/Exhaust]

Installation

  1. Install in the reverse order of removal.

    CVVT oil control valve mounting bolt:

    9,8–11.8 N·m

Test yourself

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