How to improve when the engine idle speed is low?

The adjustment method of engine low idle speed is as follows:

1, Adjust the low idle speed of the car: Adjust the screw by adjusting the throttle opening, but the actual idle speed adjustment is complicated. Make sure that the car meets these conditions: normal engine temperature, proper valve clearance, normal ignition system, good sealing of all pipelines, full throttle opening and tight throttle closing.

2. Theoretically, each engine has its corresponding idle speed, and in order to get the ideal engine idle speed, the manufacturer adjusts the throttle and fuel injection quantity, and the final ideal engine idle speed can ensure that the engine will not stall because of too low speed at that speed;

According to our actual reference, many models are idling at 600 rpm, which is normal. In fact, foreign research shows that every decrease in idle speed of 100 rpm is equivalent to running one mile per gallon of gasoline, but if the speed is too low, the combustion will deteriorate sharply and the engine will shake violently because of the low combustion propagation speed.

4. The lowest speed when the engine is not shaking is the best. The common causes of low idle speed of automobiles are: failure of idle speed control valve, poor atomization or blockage of injector, change of oil viscosity, etc.