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P0191 Diagnostic Trouble Code Discussion for April 2008

Fuel Rail Pressure Sensor Performance


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Trouble Ticket Help Requests for DTC P0191
Help Request Posted
2003 Ford Taurus LX 3.0L Stall, MIL Lamp on VIN: 1FAFP55U83
P0191: fuel rail pressure circuit performance. I am uncertain if this could be a module or pcm problem. I suspect its the pump due to high mileage and the volts rising within one hour of run time. I am unable to test rail pressure manually due to no schrader valve or the correct adapters. I cannot rely on ...
April 15, 2008
2004 Ford E-350 Super Duty 5.4L No Start, Cuts out, Stall VIN: 1FDNE31MO4
P0191: high fuel rail pressure. THIS VAN IS BEING MY LATEST NIGHTMARE THIS IS A CNG VEHICAL. WHEN RUNNING IT SEEMS FINE BUT IT HAS STARTED TO DIE AT WILL LAST TIME IT DIED WE SCANED THE COMPUTER WITHIN A COUPLE OF MINUTES OF STALLING AND THE COMPUTER SHOWED AN RPM SIGNAL OF 1088RPM AND SPARK...
April 17, 2008
2003 Ford Taurus LX 3.0L Stall, MIL Lamp on VIN: 1FAFP55U83
P0191: fuel rail pressure circuit performance. I am uncertain if this could be a module or pcm problem. I suspect its the pump due to high mileage and the volts rising within one hour of run time. I am unable to test rail pressure manually due to no schrader valve or the correct adapters. I cannot rely on ...
April 15, 2008
2004 Ford E-350 Super Duty 5.4L No Start, Cuts out, Stall VIN: 1FDNE31MO4
P0191: high fuel rail pressure. THIS VAN IS BEING MY LATEST NIGHTMARE THIS IS A CNG VEHICAL. WHEN RUNNING IT SEEMS FINE BUT IT HAS STARTED TO DIE AT WILL LAST TIME IT DIED WE SCANED THE COMPUTER WITHIN A COUPLE OF MINUTES OF STALLING AND THE COMPUTER SHOWED AN RPM SIGNAL OF 1088RPM AND SPARK...
April 17, 2008