Fukang 148v idle point, the idle speed suddenly rises and falls from 1000 to 1200, the throttle valve is cleaned, the idle valve is cleaned, and the spark ring is also replaced.

Hello: Check the following sealing problems. There are still many such failures.

1: Check that there is a small oil collecting tank pipeline at the inlet pressure sensor (clean).

2: Idle solenoid valve is stuck or poorly sealed.

3. The sealing ring of throttle valve is not well sealed.

4: The intake manifold is not well sealed.