Kia Stinger: Engine Control System / E-CVVT motor

Kia Stinger CK 2018-2024 Service Manual / Engine Control / Fuel System / Engine Control System / E-CVVT motor

Components and components location

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. DC motor that drives the CVVT is mounted inside and covering part is sealed in order to protect oil from flowing inside.

Description and operation

E-CVVT (Electric Continuous Variable Valve Timing) system, located on the intake camshaft of the engine, 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.


Schematic diagrams
Circuit diagram

Harness Connector

Repair procedures

Remove the E-CVVT.

(Refer to Engine Mechanical system - "CVVT & Camshaft")


Mount the E-CVVT.

(Refer to Engine Mechanical system - "CVVT & Camshaft")


After replacing or remounting the E-CVVT assembly, be sure to reset the learned value from the additional feature menu on the KDS diagnostic device.

When the learned value for electronic cam position is erased, start learning the cam position while cranking. The engine can start once this is completed.

Cranking should be repeated for up to 2-3 times to complete learning.

Signal Waveform

There is no separate sensor inside E-CVVT. Valve timing is calculated by applying 4-flank type target wheel on the exhaust side and comparing CKPS and CMPS.

Variable Charge Motion Actuator (VCMA)
Components and components location Components ECM directly controls the actuator and the rotation of motor operates the VCM flap of intake manifold in link structure to create tumble i ...

Fuel Pressure Control Valve (FPCV)
Specifications Specification Item Specification Coil Resistance (Ω) 0.47 - 0.53 [20°C(68°F)] Description and opera ...

Other information:

Kia Stinger CK 2018-2024 Owners Manual: Tire rotation

To equalize tread wear, it is recommended that the tires be rotated every 10,000 km (6,000 miles) or sooner if irregular wear develops. During rotation, check the tires for correct balance. When rotating tires, check for uneven wear and damage. Abnormal wear is usually caused by incorrect tire ...

Kia Stinger CK 2018-2024 Owners Manual: Operation of the parking distance warning-reverse

Operating condition This system will activate when the indicator on the parking distance warning-reverse OFF button is not illuminated. If you desire to deactivate the parking distance warningreverse, press the distance warning- reverse OFF button again. (The indicator on the button wil ...

Copyright © 2015-2024