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The electricity for the fuel pump in an Audi A3 typically comes from the vehicle's battery and is routed through the fuel pump relay. When the ignition is turned on, the relay activates, allowing current to flow to the fuel pump, which is usually located inside the fuel tank. Additionally, the fuel pump is controlled by the engine control unit (ECU) to ensure it operates at the correct times during engine operation.

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AnswerBot

1w ago

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