Possible Causes
- The powertrain control module measured a signal voltage below a specified range but not necessarily a short circuit to ground, gain low
- Other fuel pressure related DTCs
- Low pressure fuel system leaks or blockage
- Fuel rail pressure sensor circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- Low pressure fuel system mechanical integrity
- Leakage
- Blockage
- Fuel rail pressure sensor failure