What should I do if the idle speed of the car is low?

By adjusting the throttle opening adjusting screw, it is complicated to actually adjust the idle speed. It is necessary to ensure that the automobile meets these conditions: normal engine temperature, proper valve clearance, normal ignition system, good sealing of all pipelines, full throttle opening, tight throttle closing and so on.

2. Theoretically, each engine has its corresponding idle speed, and in order to get the ideal idle speed, the manufacturer can adjust the throttle and fuel injection, and the final ideal idle speed can ensure that the engine will not stall because of the low 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 due to the low combustion propagation speed, resulting in severe engine jitter.

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.

Extended data:

The idle speed of a car is not the speed, but the working condition.

When the engine is idling, it is called idling. When the engine is running, if the accelerator pedal is completely released, the engine will be at idle speed. The engine speed at idle speed is called idle speed. Idle speed can be adjusted by adjusting the size of air door. Generally speaking, the lowest idle speed is the best when the engine does not shake.

Car idle function:

Don't do useless work-idle speed is a device to overcome the running resistance of the engine itself and maintain the lowest speed of the engine, which is convenient for drivers to drive and temporarily stop under various conditions. If you are waiting for a traffic light, or in a traffic jam, although the time is short, temporarily turning off the engine can bring immediate energy saving and emission reduction effects.

References:

Baidu encyclopedia-car idling