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How does a EFI system work?
An EFI system consists of a fuel pump, fuel injectors, sensors and an Engine Control Unit (ECU). Fuel gets pumped up from the tank via a fuel pump out to a fuel injection rail, then into individual injectors which are inserted directly into the intake manifold. The fuel injectors are controlled by the ECU.
How does an accelerator pedal work?
The accelerator is also known as gas pedal. It is the pedal located on the floor on the far-right. This pedal controls the amount of gas being fed into the engine and thereby controls the speed of the vehicle. You push the accelerator with your right foot with your heel resting on the ground.
What is the function of EFI?
Electronic fuel injection replaces the need for a carburetor that mixes air and fuel. EFI does exactly what it sounds like. It injects fuel directly into an engine’s manifold or cylinder using electronic controls.
How is electronic fuel injection EFI controlled?
It is controlled by the ECU. It provides just enough air for the engine to maintain idle speed. An IAC valve provides air while the throttle blade stays closed. An IAC actuator physically opens the throttle blade.
What is the disadvantage of electronic fuel injection?
Disadvantages of Electronic Fuel Injection System High maintenance cost. Difficulty in servicing. Possibility of malfunction of some sensors.
Who is EFI hardware and what do they do?
EFI Hardware is a Melbourne based automotive parts supplier company. EFI Hardware specialises in Throttle cables as one of the leading providers in the automotive industry. Contact us today for more info.
How is the accelerator pedal connected to the throttle valve?
The accelerator pedal is directly connected to the throttle valve on old cars and indirectly (via an electrical connection) on new cars. There is a separate air mass flow meter (typically hot wire) that measures the mass of incoming air.
How does a fuel injection system ( ECU ) work?
Sensors monitor the mass of air entering the engine, as well as the amount of oxygen in the exhaust. The ECU uses this information to fine-tune the fuel delivery so that the air-to-fuel ratio is just right. A fuel injector is nothing but an electronically controlled valve.
How does a multi port fuel injection system work?
There are two main types of control for multi-port systems: The fuel injectors can all open at the same time, or each one can open just before the intake valve for its cylinder opens (this is called sequential multi-port fuel injection ).