The Fuel Pump in Toyota 4Runner Automobile relays the fuel distribution to the engine which enhances the burning process. Usually, electric pumps are employed in the fuel-injected engines; mechanical pumps on the other hand were common in carburetor engines. Electric pumps operate at higher pressures and are more efficient; most of today's designs incorporate pulse width modulation to improve pump longevity and conserve energy. These pumps are managed and controlled by the Electronic Control Units for efficient fuel management as well as safety. With the development of modern engines there are a lot of variants of high pressure fuel pumps with different functions to realize constant regulated pressure for all required fuel systems that allow to reach optimum performance of the engine and minimize emission.
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