Where is the oxygen sensor located in a sedan?

1 Answers
AustinRose
07/29/25 7:16am
The oxygen sensor in a sedan is located at: 1. Behind the exhaust manifold of the engine; 2. Behind the three-way catalytic converter. The oxygen sensor in a sedan is a critical sensing component in the fuel injection engine control system. It is a key part for controlling vehicle exhaust emissions, reducing environmental pollution caused by automobiles, and improving the fuel combustion quality of the car engine. The sedan oxygen sensor uses ceramic sensitive elements to measure the oxygen potential in various heating furnaces or exhaust pipes. It calculates the corresponding oxygen concentration based on the chemical equilibrium principle, thereby monitoring and controlling the air-fuel ratio of combustion inside the furnace to ensure product quality and compliance with exhaust emission standards.
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