Fuel Injection System: Comparing How TBI, PFI or MPFI, GDI, Dual Injection Works?

Comparing How Different Fuel Injection Systems Work? PFI, GDI & Dual Injection Types of fuel injection systems: A fuel injection system is a vital component in a car’s engine that delivers fuel to the combustion chamber. It is responsible for providing the right fuel to the engine at the right time to ensure efficient, accurate, and reliable operation, making it the preferred system in modern vehicles. Single-Point or Throttle-Body Injection: Single-point injection, or throttle body injection, uses a single injector in the throttle body to deliver fuel to all cylinders. The fuel is injected into the throttle body and mixed with air as it passes through the intake manifold and into the cylinders. It was commonly used in older vehicles and is now less common due to its limited precision and efficiency. Port or Multipoint Fuel Injection: Port or Multipoint Fuel Injection is also known as an indirect Injection system. In the port injection system, the fuel is injected into