Here's a breakdown:
* Electronic: This means the system uses electronic sensors and a computer to manage fuel delivery.
* Fuel Injection: This refers to the method of delivering fuel. Instead of using a carburetor, EFI systems inject fuel directly into the intake manifold or even directly into the cylinders.
Benefits of EFI:
* Improved Fuel Economy: EFI systems precisely meter fuel based on engine load, speed, and other factors, leading to better fuel efficiency.
* Reduced Emissions: By optimizing fuel delivery, EFI systems minimize unburned fuel and harmful emissions.
* Increased Power: EFI allows for more precise air-fuel ratios, leading to better combustion and increased power.
* Smoother Operation: EFI systems provide a smoother running engine with better throttle response.
* Easier Starting: EFI makes starting the engine easier, especially in cold weather.
How EFI Works:
1. Sensors: Various sensors (e.g., throttle position, engine speed, air temperature) gather data about the engine's operating conditions.
2. Engine Control Unit (ECU): The ECU receives this data and uses it to calculate the optimal amount of fuel needed.
3. Fuel Injectors: The ECU signals fuel injectors to deliver the calculated amount of fuel into the intake manifold or cylinders.
4. Combustion: The injected fuel mixes with air and ignites, providing the energy to power the engine.
EFI systems have become a standard feature in modern vehicles due to their numerous advantages. They offer improved performance, efficiency, and environmental benefits compared to older carburetor-based systems.
