DTC P0191 - Fuel Rail Pressure Sensor Circuit Range/Performance (Bank 1)
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2019 Ford Transit-350 HD, 2019 Ford Transit-350, 2019 Ford Transit-250, 2019 Ford Transit-150, and 2019 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
DTC DESCRIPTION P0191 - FUEL RAIL PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE (BANK 1)
| Description: | This DTC sets when the fuel pressure falls below or exceeds a minimum or maximum calibrated value for a calibrated period of time. | ||
| Possible Causes: |
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| Diagnostic Aids: | The presence of this DTC may indicate that the vehicle is operating in derate mode and may experience a loss of power. After repair, the vehicle may still display a system warning message. Drive the vehicle until the system warning message has cleared from the instrument cluster message center. Monitor the FRP PID with the ignition ON, engine running. The correct FRP is between 34.47 MPa (5000 psi) and 48.26 MPa (7000 psi). |
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| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST M . | ||