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P0231 Diagnostic Trouble Code Discussion for January 2019

Fuel Pump Feedback Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0231
Help Request Posted
2002 Ford Explorer XLT 4.0L No Start VIN: 1FMZU73KX2
P0231: fuel pump secondary cicuit low. explorer came in on hook from another shop. not sure what all they did but can see all new o2 sensors,new ignition coil,new upper intake o rings.has good fire,good fuel pressure,injectors pulsing,pressure regulator not leaking can't get it to run long enou...
January 16, 2019