How to solve the sudden high fuel consumption of the Big Dipper k 14B engine?

Pay attention to quality when refueling, and clean up carbon deposits regularly. Inferior gasoline will increase carbon deposition, too much carbon deposition will make the intake pipe wall rough, affect the intake effect and the quality of mixed gas, and make the fuel consumption rise sharply. Therefore, the quality of gasoline can not be ignored, and it is essential to clean up the carbon deposit once every six months.

2. Check the oxygen sensor regularly. This is a ceramic element located on the exhaust pipe of the engine, which is used to detect and control the ratio of oxygen to fuel. After long-term use, the computer of electronic fuel injection system can't get the information of oxygen concentration in the exhaust pipe, and the mixture concentration in the engine is often high, which will increase fuel consumption. Therefore, it is necessary to check the condition of the oxygen sensor regularly, and generally it needs to be replaced after 8- 1 10000 km.

3. Replace the spark plug regularly. The function of spark plug is to use high voltage electricity to generate electric spark to ignite the mixture. If it is damaged, the ignition energy will be reduced and the mixture will burn unevenly, which will slow down the speed increase of the car and increase the fuel consumption. The life of ordinary spark plugs is only 30,000-50,000 kilometers, the life of iridium spark plugs is about 50,000-80,000 kilometers, and the life of platinum spark plugs can reach 6,543,800 kilometers!