What are the reasons for the sudden increase in fuel consumption of the Mazda3 Axela?
1 Answers
The reasons for the sudden increase in fuel consumption of the Mazda3 Axela are as follows: 1. Insufficient tire pressure and tire wear: Insufficient or low tire pressure increases friction between the tires and the ground, leading to greater resistance and higher fuel consumption. Severe tire wear can cause frequent slipping, which also increases fuel consumption. 2. Fuel quality issues and carbon buildup: Poor-quality gasoline can lead to increased carbon deposits. Excessive carbon buildup roughens the intake pipe walls, affecting the intake efficiency and the quality of the air-fuel mixture, causing a sharp rise in fuel consumption. Therefore, fuel quality should not be overlooked, and cleaning carbon deposits every six months is essential. 3. Oxygen sensor malfunction: This is a ceramic component located on the engine's exhaust pipe, used to detect and control the oxygen-to-fuel ratio. Over time, the electronic fuel injection system's computer can no longer receive accurate information about the oxygen concentration in the exhaust pipe, often resulting in a richer air-fuel mixture in the engine and increased fuel consumption. Regular inspection of the oxygen sensor's condition is necessary, and it typically needs replacement at 80,000 to 110,000 kilometers.
