Kia Optima: CVVT Oil Temperature Sensor (OTS). Description and Operation - Engine Control System - Engine Control/Fuel System - Kia Optima TF 2011-2021 Service ManualKia Optima: CVVT Oil Temperature Sensor (OTS). 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 control signal which is calculated by the engine speed and load.

By controlling CVVT, the valve over-lap or under-lap occurs, which makes better fuel economy and reduces exhaust gases (NOx, HC) and improves engine performance through reduction of pumping loss, internal EGR effect, improvement of combustion stability, improvement of volumetric efficiency, and increase of expansion work.

This system consist of

- the CVVT Oil Control Valve (OCV) which supplies the engine oil to the cam phaser or runs out the engine oil from the cam phaser in accordance with the ECM PWM (Pulse With Modulation) control signal,

- the CVVT Oil Temperature Sensor (OTS) which measures the engine oil temperature,

- and the Cam Phaser which varies the cam phase by using the hydraulic force of the engine oil.

The engine oil getting out of the CVVT oil control valve varies the cam phase in the direction (Intake Advance/Exhaust Retard) or opposite direction (Intake Retard/Exhaust Advance) of the engine rotation by rotating the rotor connected with the camshaft inside the cam phaser.


Installation
Х Install the component with the specified torques. Х Note that internal damag ...

CVVT Oil Temperature Sensor (OTS). Specifications
Specification Temperature [∞C(∞F)] Resistance (kΩ) -40(-40) 52.15 -20(-4) 16.52 0(32) ...

See also:

Front Driveshaft Components and Components Location
Component location 1. Driveshaft (LH) 2. Driveshaft (RH) Components 1. BJ assembly2. Circlip3. BJ boot band4. BJ boot5. Dynamic damper band6. Dynamic damper7. Shaft8. TJ boot band9. TJ boo ...

Front Seat Components and Components Location
Components 1. Headrest2. Headrest guide3. Front seat back cover4. Front seat back warmer5. Front seat back frame6. Front seat duct7. Front seat back board8. Front seat cushion cover9. Front seat ...

Adjustment
Adjust Hood 1. After loosening the hinge (A) mounting bolt, adjust the hood (B) by moving it up or down, or right or left. 2. Adjust the hood height by turning the ...

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