DTC P0191-85: Fuel Rail Pressure Sensor Circuit Range/Performance Bank 1 - Signal above allowable range: Action
WARNING: This page is about a different car, the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, and 2016 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.
- 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 power
- 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