How to judge the engine mixture is too lean

When the engine of the car makes a sound like a gun, and the car is not only boring but not stable enough, and the engine speed is difficult to increase after starting, these are all caused by the engine mixture being too lean. In severe cases, the engine will shake at idling speed and the engine will stall when starting.

The mixed gas in the engine refers to the mixture of fuel, diesel and air. The gas concentration of the gasified fuel mixed with air is too low, that is, if the mixed gas is too lean, the concentration ratio of the fuel mixture in the car will be blocked. When the fixed value is high, the mixture is too rich. Whether the mixture is too lean or too rich, it will damage the car. If the mixture of the car is too lean, the car will have insufficient power. If the mixture of the car is too rich, the engine will have less air and more fuel, and the fuel will be incompletely burned, which will increase fuel consumption and pollutant emissions. It will also increase, and the spark plug will also be polluted.