The main function of the front oxygen sensor is to monitor and correct the mixture concentration of the engine. If there is a leak, it may cause an imbalance in the mixture concentration, thereby increasing fuel consumption, reducing power, and may trigger the engine's fault indicator light. The rear oxygen sensor is mainly used to monitor the efficiency of the three-way catalytic converter. Although the leak has little effect on it, it may also trigger the engine's fault light.
Advantages：
1. Accurate monitoring: accurate monitoring of oxygen sensors make complete engine combustion and stronger performance.
2. Anti-damage: NIBD oxygen sensor can long-term work or harsh environment without premature damage.
3. Circuit anti-failure: NIBD oxygen sensor circuit keep accurate data transmission and the monitoring effect.
