长安凌轩欧尚后氧传感器 28510129 28493151 售后升级替换

This rear oxygen sensor for Changan Lingxuan (2017-2019, 1.5T/1.6L) and Changan Oshan (2016-2019, 1.5L/1.6L) and compatible on some vehicles. Core function is real-time monitoring of exhaust oxygen content, feeding ECU to accurately control air-fuel ratio, ensuring combustion efficiency and emission compliance. OEM number 28510129 (original factory 28493151). Facilitates quick compatibility checks via inventory system. Replacement difficulty: medium; use dedicated oxygen sensor sleeve for removal; avoid pulling wires. After installation, use diagnostic tool to clear fault codes. An upgraded aftermarket version optimizes sensor response speed and heat resistance, effectively reducing idle instability or increased fuel consumption due to aging; suitable as an economical replacement for original parts.