Have you ever heard of mutipoint injection system (MPFI)? This is one of the most advanced fuel injection systems we see in today’s vehicles. Mutipoint injection systems have a higher level of economy and reliability. MPFI systems can produce higher horsepower and higher vehicle efficiency. MPFI is a more efficient and cleaner technology so it is more popular nowadays.
The MPFI is equipped with fuel injectors in each cylinder just above the intake valve. The intake manifold is a regulator of air flow entering the engine.
MPFI is equipped with a very flexible intake manifold design when compared to other injection systems. Another advantage of the MPFI system is efficiency – by placing the injectors directly above each intake valve, the distribution of the air/fuel mixture from one cylinder to the other is consistent. This helps create better performance and fuel economy.
Benefits of MPFI
Increased fuel consumption
- Compared with two-point fuel injection or carburetor, MPFI fuel economy is higher. The reason is, the fuel distribution system on MPFI is more valuable than other fuel injection systems.
- In a multi-point fuel injection system, one fuel injector is installed on each engine cylinder.
- Therefore, the air/fuel mixture is delivered in the right amount to each cylinder and at the right time. This way, fuel is not wasted during the combustion process.
- When compared to other injection systems, the MPFI system helps you save fuel.
Emission
Pollutant emissions are one of the main concerns today. Modern cars are equipped with different systems to reduce pollutant emissions.
MPFI systems produce fewer pollutants, so they are better for the environment because emissions of harmful chemicals released when the fuel burned are minimized.
The more precisely the fuel is delivered to the engine, the fewer harmful byproducts are released when the fuel is ignited in the combustion chamber.
Better air and fuel mixture distribution
Because MPFI has a fuel injector in each cylinder head, the supply of the air/fuel mixture to each cylinder is more accurate so that the distribution of the air/fuel mixture to each cylinder is better.
Better performance
- Engine performance using a carburetor is indeed inferior to MPFI. This is because: instead of providing additional air intake, the MPFI system atomizes the air/fuel mixture.
- Because multi-point injectors are controlled by electrically controlled units, they are more efficient.
- Fuel injection is measured as the amount of fuel injected per cycle, for each cylinder varying depending on input from sensors that determine the actual condition of the engine.
- MPFI improves volumetric efficiency resulting in increased power and torque.
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