Another cause of improper engineidling can be dirty or plugged air filter in the bottom of the charcoal canister.
发动机怠速不正常的另一个原因是活性炭罐底部的空气滤清器脏污或被堵塞。
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The proceedings of idle speed are so complex that it is very difficult to design a good controller based on the mathematical model of gasoline engineidling condition.
It is pointed that engines various faults can make the gas acting pressure lower in individual cylinders, lead to worsen the balance of gross overturn moment, and wobble the idlingengine.