Applies to: EMS S8EMS S8 (S8PDE)
What does Scania EMS fault code 391 mean?
The fuel temperature sensor is short-circuited to ground.
What causes Scania DTC 391?
- Fault in the fuel temperature sensor harness-to-harness connectors or cable harness. - Fault in the fuel temperature sensor.
How does the system react?
Can affect gear changing performance.
How to fix Scania EMS fault code 391?
- Check the fuel temperature sensor harness-to-harness connectors and cable harness.
- Check the fuel temperature sensor.
This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.