一般发动机抖动先想到的是清洗节气门和喷油嘴。那么在汽车起步时发动机抖动是怎么回事呢？其实这些问题都是可以解决的。
In general, the first thing to think of when the engine vibrates is to clean the throttle and fuel injection nozzle. So what is the engine shaking when the car starts? In fact, these problems can be solved.
造成汽车抖动更常见的原因就是节气门过脏或喷油嘴积炭过多。当发动机内部的积碳过多时，冷启动喷油头喷出的汽油会被积碳大量吸收，导致冷启动的混合气过稀，使得启动困难，这种状况下，只有等到积碳吸收的汽油饱和，才容易着车，着车后吸附在积碳上的汽油又会被发动机的真空吸力吸入汽缸内燃烧，又使混合气变浓，发动机的可燃混合气时稀时浓，造成冷启动后怠速抖动。气温越低，冷启动所需要的油量越大，积碳的存在就越会影响冷启动的顺利与否。
The most common cause of vehicle jitter is that the throttle valve is too dirty or the fuel injection nozzle has too much carbon deposit. When there is too much carbon deposition in the engine, the gasoline ejected from the cold start fuel injection head will be absorbed by the carbon deposit, which will cause the mixture of cold start to be too thin, making it difficult to start. In this case, it is only when the gasoline absorbed by carbon deposition is saturated that it is easy to get on the car. After landing, the gasoline adsorbed on the carbon deposit will be sucked into the cylinder by the engine's vacuum suction for combustion, and the mixture will become rich The fuel mixture of the engine is lean and sometimes rich, resulting in idle jitter after cold start. The lower the temperature is, the more oil is needed for cold start, and the existence of carbon deposition will affect the success of cold start.
发动机工作产生积炭是不可避免的，但是当积炭在发动机内过多时就会造成发动机工作不良，产生不同的故障。发动机内部的积炭过多时，冷启动喷油头喷出的汽油会被积炭大量吸收，导致冷车启动的混合气过稀，使得启动困难，直到积炭吸收的汽油饱和，才容易着车，着车后吸附在积炭上的汽油又会被发动机的真空吸力吸入汽缸内燃烧，使混合气变浓，发动机的可燃混合气时稀时浓，造成冷车启动后怠速抖动。
It is inevitable for the engine to produce carbon deposit, but when the carbon deposit is too much in the engine, the engine will not work well and produce different faults. When there is too much carbon deposit inside the engine, the gasoline ejected from the cold start fuel injection head will be absorbed by the carbon deposit, resulting in the mixture of cold start is too thin, which makes it difficult to start. Until the gasoline absorbed by the carbon deposit is saturated, it is easy to get on the car. After landing, the gasoline adsorbed on the carbon deposit will be sucked into the cylinder by the vacuum suction of the engine for combustion, so that the mixture becomes rich and the engine is combustible When the gas is thin and sometimes rich, it causes idle vibration after cold start.
