DTC P0191-84: Fuel Rail Pressure Sensor Circuit Range/Performance Bank 1 - Signal below allowable range: Action
WARNING: This page is about a different variant/trim than selected.
- Diagnosis of this DTC may require using the Jaguar Land Rover approved diagnostic equipment to check datalogger signals:
- 0x0324 Fuel Rail Pressure Sensor - Volts
- 0x03DC Fuel Rail Pressure - Desired - kPa
- 0xF423 Fuel Rail Pressure - kPa
- Check fuel system for mechanical integrity
- Check powertrain control module for fuel pressure related DTCs and refer to relevant DTC index
- Refer to the appropriate system wiring diagram and check the fuel rail pressure sensor circuit for short circuit to ground
- Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
- Check and install a new fuel rail pressure sensor as required
- Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest