How does a high-pressure fuel pump function in a direct injection engine?
My car uses a direct injection engine with a high-pressure fuel pump. Can you explain how this fuel pump works and why it’s essential for direct injection systems?
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MustangSally Selected answer as best July 28, 2024
How does a high-pressure fuel pump function in a direct injection engine?
A high-pressure fuel pump in a direct injection engine delivers fuel directly into the combustion chamber at extremely high pressures, often exceeding 2,000 psi. This high pressure allows for better atomization of the fuel, leading to more efficient combustion and improved power output. The pump is driven by the engine’s camshaft and is precisely controlled by the engine control unit (ECU) to deliver the right amount of fuel at the right time. This precise control is essential for maintaining the performance and efficiency benefits of direct injection systems.
MustangSally Selected answer as best July 28, 2024
