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P0231 Diagnostic Trouble Code Discussion for September 2009

Fuel Pump Feedback Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0231
Help Request Posted
2004 Ford Expedition XLT 4.6L No Start VIN: 1FMPU16W54
P0231: fuel pump sec circuit low. Hello ford techs think I know the answer just want a sec oppinion. No start no fuel no power at inertia switch. Relay not in CJB in kick pannel I think it is part of CJB. No fuse in #9 cavity for relay replaced still nothing. I find that weird but moving on. W...
September 02, 2009
1996 Ford F-150 XL 4.9L Stall VIN: 1FTEF15Y9T
P0231: Fuel pump primary circuit low input. Hello, Techs just got this truck in here today and it will intermittently stall out on the customer while driving. However i can't get it to act up for me. It has been to a couple of other shops before coming to me. Any help would be appreciated. Thanks nick
September 22, 2009