P0094 - Fuel System Leak Detected – Small Leak
The ECM uses a Fuel Pressure Sensor and Fuel Pressure Regulator to monitor and control fuel pressure.
Fault Code Explained
The ECM has detected the fuel pressure is not as expected and has calculated that this is due to a system leak. This may be as a result of a drop in reported pressure from the fuel pressure sensor.
It is recommended to carry out a visual check for any signs of a fuel leak. If no visible leaks are found this fault code may be caused by a faulty sensor or wiring providing incorrect information to the ECM.
Further tests if no visible leaks are found
- Measure actual fuel pressure with pressure gauge
- Test Fuel Pressure Sensor and Sensor wiring
- Test Fuel Pressure Regulator wiring and solenoid / motor