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

WARNING: This page is about a different variant/trim than selected.

NOTE:

Do NOT replace the powertrain control module for this Diagnostic Trouble Code(s), unless the powertrain control module connector pins are damaged or corroded.
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

Check powertrain control module for fuel pressure related Diagnostic Trouble Code(s) and refer to relevant Diagnostic Trouble Code(s) index
Using the Jaguar Land Rover approved diagnostic equipment, measure the fuel pressure drop across the fuel filter (2 measurement points)
- Measure point 1 (Input side of the fuel filter) Install 0 -14 Bar pressure gauge between Fuel Supply to Fuel Filter Pipe and Fuel filter
- Engine at idle expected fuel pressure 7 psi (0.5 bar)
- Engine at 3000 RPM expected fuel pressure 7 psi (0.5 bar)
- Measure point 2 (Output side of the fuel filter) Install 0 -14 Bar pressure gauge between Fuel filter and Fuel Filter to High Pressure Diesel Injector Pump Pipe
- Engine at idle expected fuel pressure 7 psi (0.5 bar)
- Engine at 3000 RPM expected fuel pressure 7 psi (0.5 bar)
- Fuel filter is blocked or starting to block if fuel pressure (output side of the fuel filter) is lower than fuel pressure (input side of the fuel filter)
- Install a new fuel filter, only when diagnosed as blocked
Check low pressure fuel system for leaks or blockage
Refer to the appropriate system wiring 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
Check and install a new fuel rail pressure sensor as required
Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s) and retest