ASE Advanced Engine Performance Specialist Certification (L1) Practice Test

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Question: 1 / 20

What is the primary function of the fuel pump relay?

To power the ignition system

To control the operation of the fuel pump

The primary function of the fuel pump relay is to control the operation of the fuel pump. The relay acts as an electronic switch that supplies power to the fuel pump when needed. It is essential for ensuring that the fuel pump operates only when the engine is running or when the ignition switch is in the 'on' position. This helps prevent the fuel pump from running when the engine is not operating, protecting the system and ensuring fuel is only delivered when necessary.

This relay is integral to the fuel delivery system as it ensures proper fuel pressure and flow to the engine, which is critical for effective combustion and vehicle performance. The design of the relay allows it to withstand the electrical load of the fuel pump while providing an efficient way to control fuel delivery based on engine demands.

To regulate exhaust gases

To synchronize engine timing

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