The Four Basic Components of Electronic Fuel Injection System

The Four Basic Components of Electronic Fuel Injection System

The four basic components of the electronic fuel injection system are the ECU, Injectors, and Throttle sensor. These are important parts of your vehicle’s EFI system. If you’re wondering how your car works, keep reading. You’ll learn how the various parts work together to produce your desired power and emissions. After reading this article, you’ll be well-equipped to repair any problems you might have.


A vehicle’s electronic fuel injection system has many different parts. Its sensors provide a variety of information about fuel injection conditions. This data can either be analytic or digital. Throttle position sensors and mass airflow sensors produce analog data. A computer then uses this information to alter the fuel and air mixture. In some vehicles, a fuel injection system may even adjust the throttle to increase or decrease power output. Sensors of electronic fuel injection system should be carefully inspected and replaced if necessary.

The sensors in the EFI system are a network of components that measure various parameters, including air mass entering and exiting the engine. Several other sensors, including air temperature, open angle sensors, and oxygen sensors, also contribute to the accuracy of the composition of the gasoline coming from the injector. All of these sensors send information to the ECU, which processes the data. Several of these components can be customized for specific models and operating conditions.


The ECU is one of three major components in the electronic fuel injection system. This device processes data and sends it to the injector, which opens or closes based on the length and magnitude of the voltage. Much like a computer processor, the ECU processes data by generating varying voltages. The values of each voltage have specific meanings. While conventional fuel systems don’t use batteries, the ECU does. It also needs a constant current …

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