P1241 – Fuel Level Sensor Range/Performance
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Symptoms
- Erratic fuel gauge
- Gauge jumps
- Incorrect range estimate
- Check engine light
- Low fuel warning issues
Causes
- Worn sensor track
- Float sticking
- Connector issues
- Wiring resistance
- ECU interpretation fault
Diagnosis
- Check sensor output sweep
- Inspect float movement
- Inspect wiring
- Check connectors
- Scan live data
Repair
- Replace fuel level sensor
- Repair wiring
- Clean connectors
- Repair or replace pump module
- Update ECU software