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P0191 Diagnostic Trouble Code Discussion for August 2009

Fuel Rail Pressure Sensor Performance

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Trouble Ticket Help Requests for DTC P0191
Help Request Posted
2004 Ford E-350 Super Duty 6.8L MIL Lamp on VIN: 1FDWE35S44
P0191: fuel rail pressure range performance. ... Scanner showed P0191 fuel pressure range performance.Freeze frame showed code set when computer read 5100 psi on fuel rail. We thought sensor was intermittent so replaced it. Vehicle came back soon after with same code and similar high psi readings in free...
August 11, 2009
2005 Ford Five Hundred SEL 3.0L Excessive Emissions, No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FAFP24105
... stalls, runs rough,idles good then bad. Code P0191, 452,183. We installed Fuel pressure temperature sensor after following testing procedures. New Sensor does same thing and same codes appear. Very black smoke from tail pipe. From our information, this veh...
August 19, 2009