The damage or failure of Xichai NOx sensor may lead to abnormal engine operation and even increase fuel consumption. If the engine burns incompletely or the ratio is incorrect, it will lead to fuel waste and increase fuel consumption.

Xichai nitrogen and oxygen sensor refers to the sensor used to monitor emissions on Xichai diesel engine. The sensor is usually installed on the exhaust pipe of a diesel engine, and can measure the concentration of nitrogen oxides (nitrogen oxides) emitted by the engine.