What causes the loud engine noise when stepping on the accelerator in a Vios?
1 Answers
The reasons for loud engine noise when stepping on the accelerator in a Vios are as follows: Excessive carbon deposits: Excessive carbon deposits in the engine is a major cause, primarily due to the use of inappropriate fuel. The solution is to recommend adding a certain amount of cleaner when refueling. After cleaning, it's best to drive at high speed for a while, which helps increase exhaust volume and allows stronger airflow to carry out larger carbon deposit particles. Damaged oxygen sensor: The oxygen sensor mainly monitors the fuel-air ratio in the engine. Once damaged, it can cause an imbalance in the engine's fuel-air ratio, leading to a sudden increase in fuel consumption. The solution is to check the oxygen sensor as an internal control unit of the car, and it should be replaced if faulty.