丰田威驰后氧传感器 89465-0D230 精准匹配原厂配件

Toyota Vios rear oxygen sensor, OEM number 89465-0D230, precisely matches original parts and installed behind the catalytic converter. Its core function is real-time monitoring of exhaust oxygen content and feeding back to the ECU to adjust the air-fuel ratio, ensuring combustion efficiency and emissions compliance. No additional modifications needed; direct replacement. Installation difficulty is medium; recommended labor time about 30-45 minutes, protect the exhaust pipe threads during removal. If the vehicle exhibits abnormal fuel consumption, sluggish acceleration, engine warning light, or strong exhaust smell, the oxygen sensor signal may be misreading—replace promptly.