High Fuel Consumption

1. Leaking cold start valve.
2. Defective intake air sensor.
3. Defective fuel injectors.
4. High fuel pressure.
5. Defective temperature sensor.
6. Faulty electrical connection in wiring harness or electrical connectors.
7. Idle mixture too rich.
8. Defective ECU.
9. Load sensor.
10. Faulty engine temperature sensor.
11. Faulty throttle switch.
12. Ignition system.