What are the differences between a carburetor and electronic fuel injection?

2 Answers
LaDiana
07/25/25 3:22pm
The differences between a carburetor and electronic fuel injection are as follows: Difference 1: Different fuel supply methods: The carburetor mainly relies on the negative pressure in the intake tract to operate, while electronic fuel injection uses the ECU's internal program to control the injector's pulse width to adjust the fuel injection quantity. Difference 2: Different power outputs: The carburetor provides relatively less power; electronic fuel injection delivers relatively more power. The carburetor is a mechanical device that mixes a certain proportion of gasoline and air under the vacuum created by the engine's operation. As a precision mechanical device, the carburetor uses the kinetic energy of the incoming air stream to atomize the gasoline. Electronic fuel injection is a type of engine that does not require pressing the accelerator when starting. It features cold-start enrichment and automatic fast idle functions, ensuring smooth engine starts whether the engine is cold or warm.
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JackRose
08/11/25 9:26pm
As someone who has been driving for over a decade, I can say the difference between carburetors and fuel injection is night and day. I used to drive my dad's old Toyota with a carburetor – starting it in winter was pure torture. You had to pump the gas pedal forever to warm it up, and when cold, it shook like crazy while guzzling fuel at alarming rates. But with modern fuel-injected cars, just turn the key and it fires right up – smooth and instant, with way sharper throttle response. The fuel injection system uses computers to monitor engine conditions and automatically adjusts fuel delivery, making it both fuel-efficient and eco-friendly. Filling up the carbureted car always hurt my wallet, whereas the fuel-injected one costs half as much for the same distance. Nowadays, cities enforce strict emissions standards, and carbureted cars often fail inspections or get scrapped. Young buyers should avoid vintage cars – fuel injection is the hassle-free king. Even when I mod cars, upgrading fuel injection components is always my first move.
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