How normal is the idle speed of Dongfeng Honda?

The idle speed value varies according to different models. Usually the idle speed is in the range of 500 ~ 850 rpm, while the idle speed at the moment of cold start is about 1500 ~ 2000 rpm. After the engine water temperature returns to 90 degrees, the idle speed will remain within the specified stable value.

Idle speed is a working state of the car, which means that the engine runs in neutral position. When the cold car starts, the engine temperature can't reach the optimal working temperature. At this time, the fuel injector will automatically increase the fuel injection quantity and speed, and the idle speed will be 1200-2000. Wait for about one minute at idle speed, and it will be normal if the idle speed drops below 1000 rpm. Don't idle for a long time when starting a cold car, which may easily lead to carbon deposition in the engine.

First of all, the lubrication of all parts of the engine is not thorough, and the working temperature of the engine can not reach the optimal working temperature. At this time, the fuel injector will automatically increase the fuel injection quantity to increase the speed. Generally, the motor train can be started after idling for 30- 100 seconds, and the speed can be controlled within 30 yards, and the vehicle can drive slowly for about 2-5 minutes. After the engine temperature reaches the optimal working temperature, it can run normally.

In general, if the acceleration and idle speed of the vehicle are too high, checking whether the intake manifold is loose or leaking will greatly increase the fuel consumption cost and increase the carbon deposition of the engine. If the idle speed of the car is too low, the safety hazard of flameout may occur at any time during driving. When the car is idling at high and low speed, it may be that the spark plug or high-pressure bag does not work, which leads to the engine piston not working, resulting in jitter damage.

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