What factors determine the fuel injection pulse width in Delphi EMS?

The numerical unit of the fuel injection pulse width displayed by this parameter is ms, and the numerical value displayed by this parameter is large, which means that the fuel injector takes a long time to start fuel injection each time, and the mixture obtained by the engine is rich; The value displayed by this parameter is small, which means that the fuel injector will start injecting fuel for a shorter time each time, and the mixture obtained by the engine will be leaner. There is no fixed standard for fuel injection pulse width, which will change with the engine speed and load.

Affect the fuel injection pulse; The main factors of medium width are as follows:

(1)λ adjustment;

(2) the concentration of mixed gas in the activated carbon tank;

(3) air temperature and density;

(4) Battery voltage (the speed at which the fuel injector opens).

Common causes of excessive fuel injection are as follows:

(1) The air flowmeter is damaged;

(2) The throttle control unit is damaged;

(3) There is an extra load;

(4) One or several cylinders are not working normally.