According to official website of Baojun Automobile, Baojun 4S Store provides sales and installation of Baojun 730 original oxygen sensor, which is produced by Haoshun brand of Zhaoqing Otis Industrial Co., Ltd.
The front oxygen sensor of Baojun 730 is a sensor in the automobile emission control system, which is used to monitor the oxygen content in the engine emission and send the monitoring results to the computer system of the vehicle, so that the computer system can adjust the combustion process of the engine, thus reducing the pollutant emission of the automobile and improving the fuel efficiency.