Kia Sportage: Engine Control System / E-CVVT motor Description and operation
Electric E-CVVT system is electric continuous variable valve timing system.
It is located on the intake camshaft of the engine and uses motor rotation to
control the rotation angle of camshaft relative to the rotation of crankshaft
regardless of engine pressure. E-CVVT controls the DC motor current (duty signal)
to more closely control the system compared to the previous pressure type, to
increase reaction speed of cam, to improve startability, and to reduce the emission
of exhaust gas. Also, operation range of intake valve (valve opening angle)
is expanded. So, the output and fuel efficiency are improved.


Components
Appearance of E-CVVT is similar to that of hydraulic CVVT. Connector that drives
DC motor and protection cover that protects the motor are mounted on the upper
part. D ...
Other information:
The lane is not visible due to snow, rain, debris, puddles or other environmental
conditions.
The brightness outside changes suddenly such as when entering/exiting
a tunnel.
The headlights are off at night or the vehicle is in a tunnel.
The color of the lane marking from the road is d ...
Inspection
1.
Connect the KDS/GDS on the Data Link Connector (DLC).
2.
Measure the output voltage and fuel pressure of the RPS at idle and
various engine speed.
Pressure
Output Voltag ...