What should VIOS do with high fuel consumption?

Regarding the fuel consumption, there are many factors that lead to high fuel consumption, such as driving habits (sudden refueling, sudden braking, neutral taxiing, mismatch between speed and gear), low tire pressure, inferior fuel, ignition system failure, and electronic control system failure. These will increase the fuel consumption of vehicles. Secondly, if the vehicle is not maintained on time, such as not replacing the air filter, gasoline filter, spark plug and clutch plate in time, it will also lead to an increase in fuel consumption. Then there are carbon deposits and faults in the electronic control system, such as carbon deposits in throttle body, idle valve and fuel injector, and inaccurate signals of oxygen sensor, intake pressure sensor and water temperature sensor, which will affect the fuel consumption of vehicles. If the fuel consumption is too high, a comprehensive inspection is needed. I hope my answer is helpful to you.