Electronic Injection System uses the electronic sensors for precise metering of fuel. Such a system is called “Electronic Diesel Control (EDL)” system. Then variation sensors used are engine speed, crankshaft position, temperatures of intake & ambient air and lubricating oil, mass flow of air, accelerator pedal position.

The sensors feed the data to an electronic control unit (ECU). Which determines the amount of fuel to be injected depending upon the engine speed, throttle position and other parameters

Advantages of electronic system:

1) Reduces fuel consumption and gives better mileage.

2) Reduces exhaust emissions.

3) Improves engine power.

4) Prevents overheating of engine during braking and idling condition of the engine.

Now a days EDC system are preferred over mechanical system in modern C.I. engines.