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P1235 Diagnostic Trouble Code Discussion for June 2013

High Pressure Fuel Pump Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1235
Help Request Posted
2007 Ford F-250 Super Duty XL 5.4L No Start VIN: 1FDNF20537
P1235: fuel pump control out of range only sets in koeo test. ... fuel pump driver module is not suppling ground to fuel pump , in the archives i found a guy that bypasses the driver with two fuses , doing this truck fires right up with desired fuel pressure , which leads me to believe grounds and powers to fuel pump dri...
June 11, 2013