It receives an electronic signal from the engine's electronic control unit to open the nozzles through an electronic plug or a connection to the fuel injectors. #7 Electronic Plug or Connection A connection or plug is located on the bottom of an electronically controlled fuel injector.. The electronic fuel injection (EFI) system is the heart of modern automotive engines, providing precise fuel delivery and optimum performance. Understanding how this sophisticated system works can be daunting, but with the help of a comprehensive diagram, the process becomes much clearer.
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An injector driver circuit is a component in an electronic fuel injection (EFI) system that controls the operation of fuel injectors. It provides the necessary voltage and current to open and close the injectors at the correct timing to deliver the right amount of fuel into the engine cylinders.. Fig. 5 - Block Diagram of Electronic Fuel Injection System. The sensors continuously detect the values of numerous parameters like air pressure, air temperature, throttle angle, air density, fuel temperature, fuel pressure, oil pressure, coolant temperature, exhaust temperature, crankshaft angle, timing, engine rpm, speed, etc.
