What happened to the rhythm and jitter after Song ev300 adjusted its sports mode?

Problems such as engine carbon deposition and unstable oil pressure will cause aftershocks.

1, serious carbon deposit in the engine: The most common reason for car jitter is that the throttle valve is too dirty or the fuel injector has too much carbon deposit. When there is too much carbon deposit in the engine, the gasoline sprayed by the fuel injection head will be absorbed by the carbon deposit during the cold start, which leads to the lean mixture during the cold start and makes it difficult to start.

2. Ignition system problems: Check the working conditions of spark plugs, high-voltage lines and ignition coils. The ignition system is not easy to use, and the spark plug is not in good condition, which will also lead to this failure.

3. Unstable oil pressure: If you have cleaned the carbon deposit in the engine, cleaned the throttle, changed the oil pad and replaced the spark plug, you still find that the body is shaking at idle speed. It is recommended to go to 4S shop to check whether the fuel supply pressure and intake pressure sensors are normal. If the oil supply pressure of the oil pump is abnormal, or the value of the intake pressure sensor is wrong, the car body will shake.