× 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 2015

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
2006 Ford E-450 Super Duty 6.8L Hesitation, Surge, Misfire VIN: 1FDXE45SX6
P0191: Fuel rail pressure. Ok here goes i have a bus that sets a code po191 sometimes had my scanner hooked up its says disired fuel pressure is 64.5 but sometime its right there and then it will be 9 psi then it goes back up i changed out the fuel pump relay and the fuel pump assy my q...
April 30, 2015