DTC P0087-84: Fuel Rail/System Pressure - Too Low Bank 1 - Signal below allowable range: Action
- Check powertrain control module for fuel pressure related DTCs and refer to relevant DTC index
- Check fuel lines for restrictions and repair as required
- Check fuel lines for leakage and repair as required
- Diagnosis of this DTC may require using the manufacturer approved diagnostic system check datalogger signals
- 0x0324 Fuel Rail Pressure Sensor - Volts
- 0x03DC Fuel Rail Pressure - Desired - KPa
- 0xF423 Fuel Rail Pressure - KPa
- 1. Set the engine running
- 2. Monitor fuel rail pressure
- 3. Set the ignition to OFF. Fuel rail pressure should decrease
- 4. If the fuel rail pressure does not decrease possible stuck valve in fuel pump
- Refer to the appropriate System Wiring Diagram(s) and check the rail pressure sensor circuit for short circuit to ground, short circuit to power, open circuit, high resistance
- Refer to the appropriate System Wiring Diagram(s) and check the fuel pressure control valve 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
- Check and install a new fuel pressure control valve as required
- Check fuel pump - high pressure for mechanical integrity
- Fuel volume control valve
- Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest