Benefits of Using Fuel Injection System Over Carburetor for Your Car

Carburetor versus fuel injection system (FIS) has for long been a debatable topic in automobile industry. While carburetors ruled the roost for several decades, modern FIS has dominated in recent years. Each has its advantages and disadvantages but, FIS brings many benefits when compared to traditional carburetors.

Sending air and fuel mixture into the cylinders of car engine for combustion is one of the most critical activities in any car engine. Though carburetor and FIS do the same job, the way carburetor sends fuel to the cylinders differs from the way the FIS does. The FIS does it better and is far more effective than carburetor.

In this article, we will see the benefits of using FIS in your car over carburetors.


• Injects right amount of fuel and air into cylinder: The amount of mixture required for combustion varies on different factors like environment, driving style, etc. The carburetor has pipes with valves that push air and fuel mixture into the cylinder. But, carburetor cannot measure the amount of air and fuel accurately, fuel injection system on the other hand can.

The sensors in FIS monitor and measure the amount of mixture needed to make sure that it is as optimal as possible in varying conditions (driving and environmental), and push it to the cylinders for combustion at right time.

• Better fuel efficiency: Inaccurate proportion of air-fuel mixture affects the fuel efficiency of the car. Too much air and very little fuel is called “lean mixture” and it reduces the power of the engine; whereas too much fuel and very little air is called “rich mixture” and it causes wastage of fuel. By measuring the mixture accurately, the FIS increases the fuel efficiency of the car.

• Lower emission of toxic substances: The FIS not only does increase the performance of the engine but is also environmental-friendly. Because of the accurate and precise mix of air and fuel, the amount of toxic substances emitted after combustion is minimized and hence reduced air pollution.

Minimal starting problems, even in extreme cold conditions: One of the most common problems with the carburetor is the lean mixture of air and fuel. Due to cold and high density of air in winter mornings, engines may need extra fuel that cannot be sent automatically by carburetors. Under these circumstances, you need to use choke to manually provide the needed extra fuel.

On the other hand, the sensors in FIS identify the right amount of fuel needed and help the system send automatically the right air-fuel mix and thus minimize starting problem during winter mornings.

Produces same power and torque for less fuel: The FIS distributes fuel to each cylinder of the engine accurately. The carburetor sends the same amount equally to each cylinder. This causes fuel wastage because the amount of fuel required by each cylinder varies.

FIS sensors can identify the correct amount of fuel required by each cylinder and help send accordingly. Hence, car with fuel injection system can produce same power and torque by consuming less fuel compared to cars that are using carburetors.

Clearly, fuel injection system is more beneficial over carburetor. Not only it increases fuel efficiency and the performance of your car but also avoids starting problems, and is more environmental-friendly.

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