Fuel Pump Relay: Description and Operation

PURPOSE
When energized, provides power to the fuel pump.

LOCATION
Beneath center of dash, adjacent to ECU.

OPERATION
When the airflow meter flap moves in response to incoming air induced by engine cranking, it closes a switch which energizes the relay. The relay in turn supplies operating voltage to the electric fuel pump. As a safety feature, the relay is only energized when the engine is running or being cranked by the starter motor.