Mr. Yang, regarding your question, there are many factors that lead to high fuel consumption. If the fuel consumption suddenly increases, this situation focuses on checking the electronic control system of the engine. The ecu controls the engine to keep in the best working state according to the input signals of each sensor. After this fault occurs, it is important to check whether the input signals of oxygen sensor, water temperature sensor and intake pressure sensor to ecu are normal, and the engine computer mainly controls the fuel injection quantity according to the signals of these sensors. Secondly, it is very important to check the working conditions of spark plugs, high-voltage lines and ignition coils. Poor ignition in a single cylinder can also lead to high fuel consumption.
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