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P0191 Diagnostic Trouble Code Discussion for March 2019

Fuel Rail Pressure Sensor Performance

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Trouble Ticket Help Requests for DTC P0191
Help Request Posted
2005 Ford E-350 Club Wagon XL 5.4L No Start VIN: 1FBSS31L85
P0191: Frp circuit. ... long before it has to go out again. Drivers complain of a hot (only hot) restart problem. Cranks a few times to get it to start. They noticed black smoke once. Of course, it always started in bay with hot soaks, etc. Occasional hint of an over fueling ...
March 27, 2019