Kia Stinger CK Quiz
Engine Control System/Fuel System

CVVT Oil Temperature Sensor (OTS)

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
8steps
~48min
2/5difficulty
02040608010044.133N·mlb·ft
Tightening torque found on this page
Done 0 of 8

Specifications

Specification

Temperature [°C (°F)] Resistance (kOhm)
-40 52,15
-20 28,82
0 14.08 - 19.45
20 2,16 - 2,78
40 1.11
60 0,54
80 0,26 - 0,32
100 0,16
120 0,1
140 0,06

Description and Operation

Description

The Continuous Variable Valve Timing (CVVT) system advances or retards the timing of the intake and exhaust valves according to the ECM control signal, calculated from 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 CVVT oil control valve (OCV), which supplies oil to or drains oil from the cam phaser according to the ECM pulse width modulation (PWM) control signal; the CVVT oil temperature sensor (OTS), which measures the engine oil temperature; 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

  1. Turn the ignition off.

  2. Disconnect the OTS connector.

  3. Remove the OTS.

  4. After immersing the sensor thermistor in engine coolant, measure the resistance between OTS terminals 1 and 2.

  5. Make sure the resistance is within specification.

    Temperature [°C(°F)] Resistance (kOhm)
    -40(-40) 52,15
    -20(-4) 16.25
    0(32) 6,0
    20(68) 2,45
    40(104) 1.11
    60(140) 0,54
    80(176) 0,29

Removal

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

  2. Disconnect the transmission oil temperature sensor connector (A).

  3. Remove the oil temperature sensor (B).

Installation

  1. Install in the reverse order of removal.

    Oil temperature sensor: 34.3–44 N·m

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