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Home >> Mercury >> 1993 >> Capri XR2 >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Fuel System >> Fuel Delivery >> Fuel Pump Relay

Fuel Pump Relay

This relay prevents fuel pump operation unless the engine is cranking or when a signal from the Vane Airflow (VAF) Meter confirms the engine is running. See Fig 1. Internal circuitry holds the relay contacts closed during momentary loss of the VAF meter signal during rapid deceleration. The fuel pump relay is located under the center of the instrument panel, between the panel and the floor.

Fig 1: Electric Fuel Pump System Schematic
G120250Courtesy of FORD MOTOR CO.