× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P0191 Diagnostic Trouble Code Discussion for April 2008

Fuel Rail Pressure Sensor Performance


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

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