1. Faulty Oxygen Sensor: A faulty oxygen sensor can provide incorrect information to the engine's computer, causing the engine to run inefficiently and consume more fuel.
2. Clogged Air Filter: A clogged air filter restricts airflow to the engine, making it work harder and consume more fuel.
3. Tire Pressure: Underinflated tires increase rolling resistance, leading to reduced fuel efficiency.
4. Dirty Fuel Injectors: Clogged or dirty fuel injectors can affect fuel delivery, resulting in poor fuel mileage.
5. Faulty Spark Plugs: Worn-out or faulty spark plugs can cause the engine to misfire, leading to increased fuel consumption.
6. Transmission Issues: Transmission problems, such as slipping or worn-out clutches, can reduce fuel efficiency.
7. Excessive Weight: Carrying unnecessary weight in the vehicle adds extra strain on the engine and reduces fuel efficiency.
8. Aggressive Driving: Rapid acceleration, sudden braking, and excessive idling can all contribute to reduced fuel mileage.
9. Faulty Mass Airflow Sensor: A faulty mass airflow sensor can provide incorrect information about the amount of air entering the engine, resulting in incorrect fuel metering and reduced fuel efficiency.
10. Engine Coolant Temperature Sensor: A faulty engine coolant temperature sensor can cause the engine to run at a lower temperature, leading to reduced fuel efficiency.
To improve fuel mileage, it's important to maintain your vehicle regularly and promptly address any issues or concerns that may be affecting its performance and fuel efficiency.
