Kia Stinger CK: Engine Control System / E-CVVT motor
Components and components location
| 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. 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
| Description |
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.
| Operation |
Schematic diagrams
| Circuit diagram |
Harness Connector
Repair procedures
| Removal |
| 1. |
Remove the E-CVVT. (Refer to Engine Mechanical system - "CVVT & Camshaft") |
| Installation |
| 1. |
Mount the E-CVVT. (Refer to Engine Mechanical system - "CVVT & Camshaft") |
| Adjustment |
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.
|
Troubleshooting
| 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. |
Other information:
Kia Stinger (CK) 2018-2023 Service Manual: AWD Control System
Components and components location Components Location 1. AWD ECU Description and operation Description The AWD ECU distributes the driving force to the front/rear wheel through controlling the multi plate clutch on the AWD transfer case by analyzing the input information, i.e. the wheel speed, accelerator and steering angle depending on the road condition and driving state.Kia Stinger (CK) 2018-2023 Service Manual: Emission Control System
Components and components location Components Location 1. PCV Valve 2. Canister 3. Purge control solenoid valve (PCSV) 4. Fuel tank air filter 5. Catalytic converter (WCC) 6. Vapor hose (Canister ↔ Intake Manifold) 7. Vapor Hose (Canister ↔ Fuel Tank) 8. Ventilation Hose (Canister ↔ Atmosphere) 1.