P0191 FORD -F350 5.4 v-8 gas engine

Question

My truck has the code PO 0191 which means fuel rail pressure sensor. When i push the gas i have no power at all just chuggs and barely drives. When u shut the truck off and turn it back on it will work fine until you try and put the petal to the floor. I realize ur not supposed to do that but when u have no power its my first instinct. Do i replace the fuel filter first? everything else seems soo expensive, but i did notice its not in the reasons why the code can come on. Please help!

Answer 1

Hi there,

Replacing the fuel filter could help if the truck has low fuel pressure. This has to be tested because normally low fuel pressure will be the result of a faulty fuel pump. The pressure sensor itself could also be bad and causing the code and running issues.