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:
To help achieve proper engine and powertrain performance and durability, use
only lubricants of the proper quality. The correct lubricants also help promote
engine efficiency that results in improved fuel economy.
These lubricants and fluids are recommended for use in your vehicle.
Recomme ...
Inspection
1.
Ignition "ON".
2.
Turn on the head lamp switch.
3.
Check that the aim of the head lamp changes smoothly when the head lamp
leveling device switch is turned on.
...