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Home >> Ford >> 1992 >> Crown Victoria Base, AOD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Tests W/Codes - EEC-IV >> Circuit Tests >> Circuit Test J - Fuel Pump Circuit (Relay & Inertia Switch) >> Engine Starts

Engine Starts

If engine starts, go to step 35) (dual HEGO) or replace ECA and repeat QUICK TEST  (single HEGO). If engine does not start, go to step 31).

31) Check For BATT (+) To Fuel Pump Relay  Turn ignition off. Disconnect fuel pump relay. Connect DVOM between BATT (+) terminal at fuel pump relay wiring harness connector and negative battery terminal. If voltage is 10.5 volts or more, go to step 32). If voltage is less than 10.5 volts, check fuse/fusible link for BATT (+) supply to fuel pump relay. If fuse/fusible link is okay, repair open circuit in BATT (+) circuit. Repeat QUICK TEST  .

32) Check POWER-TO-PUMP Circuit Continuity  Turn ignition off. With fuel pump relay disconnected, measure resistance between POWER-TO-PUMP terminal at fuel pump relay wiring harness connector and negative battery terminal. If resistance is less than 10 ohms, replace fuel pump relay. Reconnect relay and repeat QUICK TEST  . If resistance is 10 ohms or more, repair open circuit in POWER-TO-PUMP circuit between FPM splice and fuel pump relay. Repeat QUICK TEST  .

NOTE: A break in step numbering sequence occurs at this point. Procedure skips from step 32) to step 35). No test procedures have been omitted.
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