What about Elantra's high fuel consumption?

Lao Wang runs around the city all day for a taxi, which is enough. The average is around 9. However, if your oxygen sensor has a fault code, it is recommended to check it again to see if there is anything wrong with the wiring of the oxygen sensor. If there is any problem, it is recommended to replace the oxygen sensor and wiring harness. Because the engine is controlled in a closed loop, the oxygen content in the exhaust gas can be calculated by the oxygen sensor, thus giving the engine computer a signal to correct the fuel injection quantity according to the signal. If there is a fault, it will have a certain impact. I suggest you go to the 4s shop to check it out.