What is the output voltage of the oxygen sensor of Buick Regal 2.0T 1 1 year?

The normal voltage of the oxygen sensor is 0. 1 to 0.9V, with an average value of 0.4 to 0.5v. ..

The working principle of oxygen sensor: the ceramic sensitive element is used to measure the oxygen potential in the heating furnace or exhaust pipe, and the corresponding oxygen concentration is calculated by the principle of chemical balance, so as to monitor and control the combustion air-fuel ratio in the furnace, and ensure the product quality and exhaust gas emission meet the standards.

Oxygen sensors are installed at the front and rear of the three-way catalytic converter: the front oxygen sensor is called the front oxygen sensor, and the rear oxygen sensor is called the rear oxygen sensor. The main function of the front oxygen sensor is to detect the oxygen content in the exhaust gas, and the ecu can adjust the air-fuel ratio according to the data sent by the front oxygen sensor, and the main function of the rear oxygen sensor is to detect whether the three-way catalyst fails.