Why does the oxygen sensor frequently fail?

1 Answers
VanWyatt
07/25/25 1:55am
The reasons for frequent failure of the oxygen sensor are: 1. The quality of the fuel added to the car is too low, which cannot be effectively burned in the engine cylinder, resulting in more harmful substances and impurities in the exhaust gas; 2. When the spark plug fails, it cannot ignite normally, and the fuel and mixed gas in the engine cylinder cannot be effectively burned; 3. The three-way catalytic converter fails and cannot work normally. The oxygen sensor is a key feedback sensor in the electronic fuel injection engine control system, and it is a key component to control vehicle exhaust emissions, reduce environmental pollution caused by vehicles, and improve the fuel combustion quality of the car engine.
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