508l shift paddle shift delay

1, the main fault reason is the increase of carbon deposition in throttle, air inlet and valve. When the car is cold, it will absorb some gasoline. When the car is hot, the gasoline volatilizes, which will cause the mixture to be too rich when the engine is idling, which will lead to the unstable idling of the hot car.

2. So you should not only check the throttle and idle motor, but also check whether there is too much carbon and dirt at the air inlet, if there is.

3. It will change the cross-sectional area of the airway, so that the control unit cannot accurately control the idle intake, resulting in too rich or too lean mixture, which will lead to abnormal combustion and engine jitter. At the same time, pay attention to check whether the carbon canister is faulty.