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: Photo Sensor
Description and operation
Description
The photo sensor is located at the center of the defrost nozzles.
The photo sensor contains a photovoltaic (sensitive to sunlight) diode. The solar
radiation received by its light receiving portion, generates an electromotive force
in proportion to the amount of radiation received which is then transferred to the
automatic temperature control module so that the solar radiation compensation can
be performed.