Other information:
Kia Stinger (CK) 2018-2023 Service Manual: CVVT (Continuous Variable Valve Timing) System
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.
Kia Stinger (CK) 2018-2023 Service Manual: Driver's Attention
The driver must be cautious in the below situations, because the system may not
detect other vehicles or objects in certain circumstances.
- The vehicle drives on a curved road or through a tollgate.
- The sensor is covered with rain, snow, mud, etc.
- The rear bumper, in which the sensor is located, is covered or blocked with a
foreign matter such as a sticker, a bumper guard, a bicycle stand, etc.
