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Home >> Acura >> 1988 >> Legend Base, 4D Sedan, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Electronic Control System >> Description & Operation >> Control Devices >> Fuel Pump
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Fuel Pump

When ignition is first turned on, ECU supplies a ground circuit for the main relay for about 2 seconds. When relay is energized, power is transmitted to fuel tank. When an RPM signal is received by the ECU (cranking or running), ECU provides a constant ground circuit for main relay.

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