What's the problem with car jitter in Fausta?

When the engine is idling at rest, the engine is shaking and idling is unstable. In general, the throttle is dirty. Just clean it up It is also very likely that it is caused by the simple old fault of the spark plug. Sometimes, changing a set of spark plugs will automatically heal without taking medicine; Basically, the recommended replacement mileage of general spark plugs is about 50,000 kilometers. However, if the spark plug is not improved, there may be a problem with the wire (old model), high-voltage coil or connector connecting the spark plug. Usually such problems can only be solved in the repair shop, and DIY is impossible to solve.