What is SPN 2241 2790
- SPN 2241: Refers to a fault related to the fuel pressure sensor, indicating that the fuel pressure is outside the normal operating range.
- SPN 2790: Refers to a fault related to the exhaust gas recirculation (EGR) temperature sensor, which is providing invalid data.
Together, SPN 2241 2790 indicates issues with both the fuel pressure sensor and the EGR temperature sensor, which could affect fuel delivery and exhaust gas recirculation.
Why It Happened
This fault code is usually caused by:
- A malfunctioning fuel pressure sensor or EGR temperature sensor.
- Wiring or connection issues between the sensors and ECM.
- Contamination or damage to the sensors or connectors.
- A failure in the fuel system or EGR system.
How to Resolve It
To resolve SPN 2241 2790:
- Inspect and replace the fuel pressure sensor and EGR temperature sensor if faulty.
- Check the wiring and connectors for both sensors for damage or corrosion.
- Inspect the fuel system and EGR system for issues affecting sensor readings.
- After repairs, clear the fault codes and restart the engine to ensure the issue is fixed.
How to Avoid Before It Happens
To prevent SPN 2241 2790:
- Regularly inspect the fuel and EGR systems, including sensors.
- Keep the fuel and exhaust systems clean and free from contamination.
- Use Clue to monitor fuel pressure and EGR system data in real-time to catch potential issues early.
