Combined with 3 typical fuel pump control circuits, this paper introduces their working principles and maintenance methods.

结合3种典型的燃油泵控制电路，分别介绍了燃油泵控制电路的工作原理和检修方法。

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For example, data on miles traveled, gasoline consumption, driving habits, and maintenance history can help improve fuel efficiency and save families and businesses money at the pump while reducing harmful air pollution.

WHITEHOUSE: Brainstorming With Energy Data