What is the normal resistance of an oxygen sensor?

[LeoAnn]

The normal resistance of an oxygen sensor is between 0.1 and 0.9. The fluctuation range of the rear oxygen sensor is smaller than that of the front oxygen sensor. The working principle of the oxygen sensor is: using a ceramic sensitive element to measure the oxygen potential in the heating furnace or exhaust pipe, and then calculating the corresponding oxygen concentration based on the chemical equilibrium principle, thereby monitoring and controlling the air-fuel ratio of combustion in the furnace to ensure product quality and compliance with exhaust emission standards. Symptoms of a damaged oxygen sensor include: 1. Decreased engine power, increased fuel consumption, and unstable idle speed during operation; 2. Excessive carbon content. The oxygen sensor is a critical feedback sensor in the electronic fuel injection engine control system, playing a key role in controlling vehicle exhaust emissions, reducing environmental pollution caused by vehicles, and improving the fuel combustion quality of the car engine.