What does p0191 mean on a Ford F150?
What does p0191 mean on a Ford F150? This is a generic code, which indicates that it has the same meaning for the Ford F150as it would any other vehicle. P0191 is typically caused by a bad fuel pressure sensor, fuel pressure regulator, or an issue with the fuel rail pressure sensor wiring harness. What is the fuel rail pressure sensor code? Ford F150 P0191: Fuel Rail Pressure Sensor → Circuit "A" → Range/Performance | Drivetrain Resource. P0191 is a common OBD-II code. It indicates that the fuel rail pressure sensor is receiving a signal that is outside of its...