Hyundai Kona (OS) 2018-2023 Service Manual: CVVT Oil Control Valve (OCV) Description and operation
Description
Continuous Variable Valve Timing (CVVT) system advances or retards the valve
timing of the intake and exhaust valve in accordance with the ECM control signal
which is calculated by the engine speed and load.
By controlling CVVT, the valve over-lap or under-lap o ...
Hyundai Kona (OS) 2018-2023 Service Manual: 4WD ECU Repair procedures
Replacement
1.
Prior to replacing the 4WD ECU, check the 4WD ECU's clutch learing with
the GDS tool.
(Refer to 4WD Control System - "Repair procedure")
2.
Turn ignition switch OFF and disconnect the negative (- ...