Hyundai i-30: Engine Control System / CVVD Actuator

Hyundai i30 (PD) 2018-2024 Service Manual / Engine Control / Fuel System / Engine Control System / CVVD Actuator

Description and operation
Description
CVVD(Continuous Variable Valve Duration) System is a device to control the optimum open and close timing according to the driving mode by changing the valve opening section.
[CVVD Actuator]

Specifications
Specifications
Item
Specifications
Type
BLDC MOTOR
Operating Voltage (V)
9.1 - 16
Control Frequency (kHz)
10

Schematic diagrams
Circuit Diagram

Harness Connector

Repair procedures
Removal
1.
Turn the ignition switch OFF, and disconnect the battery negative (-) terminal.
2.
Disconnect the CVVD actuator connector (A).

3.
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
4.
Remove the CVVD actuator (A) after loosening the mounting bolt.
Tightening Torque :
19.6 - 24.5 N.m (2.0 - 2.5 kgf.m, 14.5 - 18.1 lb.ft)

Installation
  
When installing the CVVD actuator the shaft gear do not fit properly, rotate the CVVD actuator in both directions and installing it naturally.
(Do not impact when installating the component.)
Do not damage to the component when installating the cylinder head cover oil seal (A).

  
Install the component with the specified torques.
Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.
1.
Install in the reverse order of removal.
Adjustment
1.
Turn the ignition switch OFF.
2.
Connect the diagnostic tool to Data Link Connector (DLC).
3.
Turn the ignition switch ON.
4.
Select "Vehicle, Model Year, Engine, System".
5.
Select "CVVD Intake Adaption".

6.
Perform the "CVVD Learning" refer to the diagnostic tool.

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