丰田威靖后氧传感器89465-60300 原车规格替换 动力如新

When your Toyota Vios shows check engine light, noticeably higher fuel consumption, weak acceleration, or pungent exhaust odor, it is likely the downstream oxygen sensor aging or failure. This sensor normally monitors oxygen content in the exhaust and feeds back to the ECU to precisely control air-fuel ratio, ensuring smooth power output and complete combustion. This product is an OEM-spec replacement, OEM number 89465-60300, suitable for Toyota Vios models. When installing, be sure to use a dedicated socket to avoid thread damage and ensure the wiring connector is firmly connected to prevent loosening and signal anomalies.