What is SPN 1592 FMI 19
- SPN 1592: Refers to a fault related to the fuel system, indicating an issue with the fuel pressure sensor.
- FMI 19: Indicates a performance issue with the fuel pressure sensor, often due to incorrect or invalid pressure readings.
Together, SPN 1592 FMI 19 signals a problem with the fuel pressure sensor, which could affect fuel regulation and engine performance.
Why It Happened
This fault code is usually caused by:
- A malfunctioning or faulty fuel pressure sensor.
- A blocked or malfunctioning fuel filter that affects pressure readings.
- Loose or damaged wiring between the sensor and ECM.
- A problem with the fuel pump that causes irregular pressure.
How to Resolve It
To resolve SPN 1592 FMI 19:
- Inspect the fuel pressure sensor and wiring for damage or corrosion.
- Check the fuel filter and replace it if it is clogged or malfunctioning.
- Test the fuel pump for proper operation and fuel pressure.
- After repairs, clear the fault code and restart the engine to ensure the fix.
How to Avoid Before It Happens
To prevent SPN 1592 FMI 19:
- Regularly inspect the fuel system, including the sensor and filter.
- Check fuel pressure to ensure the pump is functioning properly.
- Use Clue to monitor fuel system data and receive early alerts on irregular readings.
