Kia Optima: Operation Principle - CVVT (Continuously Variable Valve Timing) System. Description 
		and Operation - Exhaust Emission Control 
		System - Emission Control System - Kia Optima TF 2011-2025 Service ManualKia Optima: Operation Principle

The CVVT has the mechanism rotating the rotor vane with hydraulic force generated by the engine oil supplied to the advance or retard chamber in accordance with the CVVT oil control valve control.

[CVVT System Mode]

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 sp ...

[CVVT System Mode]
(1) Low Speed / Low Load (2) Part Load (3) Low Speed / High Load (4) High Speed / High Load ...

See also:

Digital Clock
When the ignition switch is in the ACC or ON position, the clock buttons operate as follows: A digital clock will not be installed if your vehicle comes equipped with an audio system. Vehicles ...

To unfasten the front lap/shoulder belt
Press the release button on the buckle and allow the belt to slowly retract. WARNING - Front Safety Belts The front seatbacks should always remain in a comfortable, upright position whi ...

Push-Starting
Your manual transaxle-equipped vehicle should not be push-started because it might damage the emission control system. Vehicles equipped with automatic transaxles cannot be push-started. Follow th ...

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