Kia Forte: [CVVT System Mode]

Second generation YD (2014-2018) / Kia Forte TD 2014-2018 Service Manual / Emission Control System / Exhaust Emission Control System / [CVVT System Mode]

(1) Low Speed / Low Load	(2) Part Load

(3) Low Speed / High Load	(4) High Speed / High Load

Driving Condition	Exhaust Valve		Intake Valve
Driving Condition	Valve Timing	Effect	Valve Timing	Effect
(1) Low Speed /Low Load	Completely Advance	* Valve Under-lap * Improvement of combustion stability	Completely Retard	* Valve Under-lap * Improvement of combustion stability
(2) Part Load	Retard	* Increase of expansion work * Reduction of pumping loss * Reduction of HC	Retard	* Reduction of pumping loss
(3) Low Speed /High Load	Retard	* Increase of expansion work	Advance	* Prevention of intake back flow (Improvement of volumetric efficiency)
(4) High Speed /High Load	Advance	* Reduction of pumping loss	Retard	* Improvement of volumetric efficiency

CVVT (Continuously Variable Valve Timing) System 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 con ...

Engine Control / Fuel System

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See also:

Climate control system
Ñ” 1. Fan speed control knob 2. Mode selection knob 3. Temperature control knob 4. Air conditioning button 5. Air intake control button 6. Rear window defroster button Heating and air conditi ...

Warning lights
✽ NOTICE - Warning lights Make sure that all warning lights are OFF after starting the engine. If any light is still ON, this indicates a situation that needs attention. Air bag Warning Ligh ...

Basic method of USE :
Audio CD / MP3 CD / USB / iPodÂ® / My Music Press the key to change the mod mode in order of CD ➟ USB(iPodÂ®) ➟ AUX ➟ My Music ➟ BT Audio. The folder/file name is disp ...

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