Replacing the timing solenoids:
The solenoid is installed on the valve core of VVT solenoid valve. When the solenoid coil is electrified, the valve core is sucked up and the valve is opened. When there is no electricity, the valve core will automatically close under the action of the spring
The performance of a actuator is damaged:
(1) Voltage damage of automobiles
(2) Incorrect oil pressure