- Precise control of air-fuel ratio - The oxygen sensor accurately monitors the oxygen content in the exhaust and converts it into a voltage signal for feedback to the engine control unit. This enables the engine to adjust the air-fuel ratio in real time according to actual working conditions, ensuring that the mixture always approaches the theoretical air-fuel ratio, thereby improving fuel combustion efficiency, enhancing the engine's power performance and fuel economy - Quick response Use scenarios - Daily driving: helps maintain optimal combustion, improving fuel economy and reducing emissions during regular commuting - Engine maintenance or tuning: supports real time feedback and adjustment to preserve proper air-fuel balance after replacement or calibration - Varied or demanding conditions: maintains stable performance when driving under load, during rapid throttle changes, or on inclines and hills