Toyota Vios Corolla Rear Oxygen Sensor 89465-59035 Direct Fit Installation Stable Output

Toyota Vios, Corolla rear oxygen sensor (OEM 89465-59035) installed behind the catalytic converter, monitors exhaust oxygen content and feeds back to the ECU to adjust the air–fuel ratio in real time. Direct OEM replacement in original mounting; compatible with multiple models; installation difficulty: medium; labor time 0.5–1 hour (avoid thread damage). When the engine check light is on, fuel consumption rises, acceleration is weak, or there is exhaust odor, the oxygen sensor may be failing and should be replaced promptly to restore emission control.