P0463 – Fuel Level Sensor Circuit High Input
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Symptoms
- Incorrect fuel gauge
- Hard starting
- Poor fuel economy
- Check engine light
- Stalling
Causes
- Faulty fuel level sensor
- Damaged wiring
- Fuel pump issue
- Connector problem
- ECU issue
Diagnosis
- Inspect wiring
- Test fuel level sensor
- Check connectors
- Scan live data
- Inspect fuel pump
Repair
- Replace fuel level sensor
- Repair wiring
- Fix connectors
- Replace fuel pump
- Update ECU