DTC P0087-22: Fuel Rail/System Pressure - Too Low Bank 1 - Signal amplitude > maximum: Action

WARNING: This page is about a different car, the 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Do NOT replace the powertrain control module for this DTC, unless the powertrain control module connector pins are damaged or corroded.
For vehicles compliant with EU6 emission standards please follow the guided flow processes and the three high pressure diesel applications below. If the fault persists after completing the applications continue with further repair actions of this DTC.
Operational requirements needed to allow the monitor to be fully tested. Drive the vehicle over 3 drive cycles (engine on/off) across varied driving conditions including high torque to confirm the repair

Using the Jaguar Land Rover approved diagnostic equipment, access and complete the following guided flow diagnostic tests to confirm the presence of a fuel system fault:
- Diesel High Pressure Pump Test
- Test High Pressure Unit Delivery Rate
- Injector shut off test
If the fault persists, complete the repair actions below
Check powertrain control module for fuel pressure related DTCs and refer to relevant DTC index
Check low pressure fuel system for leaks or blockage
Refer to the electrical circuit diagrams and check the fuel rail pressure sensor circuit for short circuit to ground, short circuit to power, open circuit, high resistance
Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
Install a new fuel rail pressure sensor, only when diagnosed as failed
Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest