Why does the old Changan Mazda 3 consume more fuel and what are the solutions?
1 Answers
The old Changan Mazda 3 consumes more fuel mainly due to excessive engine carbon deposits. Here are the measures to solve the high fuel consumption: 1. Clean the engine carbon deposits. Excessive carbon deposits in the engine are a very important reason, mainly caused by the use of inappropriate fuel. It is recommended to add a certain amount of cleaning agent when refueling, and after cleaning, it is best to drive the car at high speed for a while, which helps to increase the exhaust volume and allow the stronger airflow to carry out larger carbon deposit particles. 2. Check the oxygen sensor. As an internal control unit of the car, the oxygen sensor mainly monitors the fuel-air ratio of the engine. Once it is damaged, it will cause an imbalance in the fuel-air ratio of the engine, and the fuel consumption will definitely increase suddenly. After the oxygen sensor is damaged, the exhaust pipe will emit darker exhaust gas during driving, and the oxygen sensor should be replaced at this time. 3. Regularly replace the three filters. During the use of the vehicle, the oil filter, air filter, and fuel filter must be replaced regularly. If they are not replaced for a long time, they will become dirty and affect the use, and transmit wrong information to the engine control unit, causing incomplete fuel combustion and increasing engine carbon deposits.
