丰田系列前氧传感器 89467-22050，空燃比精确调节，尾气更洁净。

Front oxygen sensor for Toyota Camry, Corolla, RAV4 and other models, OEM number 89467-22050, installed on the exhaust manifold or the front section of the exhaust pipe. Its core function is to monitor exhaust oxygen content in real time and provide a basis for ECU air-fuel ratio adjustments to maximize combustion efficiency and reduce emissions. Installation difficulty is moderate; service time about 30–60 minutes. Take care to avoid thread damage and wiring harness interference. If the engine check light comes on, idle is unstable, fuel consumption increases, or acceleration is sluggish, the sensor may be aging and should be replaced promptly.