A. ... 1/9/2021
2009 Ford F-250 Super Duty XL 8 Cyl 5.40L
P0191 code changing sensor didn't fix now what
started no notice it was losing power when accelerating to merge onto highway. Notice this next time I drove it and check engine light came on. Code reader says it has a P0191 code fuel rail pressure sensor. Tried replacing the sensor but it changed nothing. What should I do next? The truck starts every time no issues there. You only notice the issue when trying to pick up speed to merge onto highway for example and/or when climbing a hill. It really lags when climbing a hill. Any thoughts?
Teddy B 1/10/2021
Take a look at the Fuel Pump Drive Module under the truck at the rear.