What was the voltage of the Big Dipper oxygen sensor in 2004?
The normal voltage range of oxygen sensor is 0. 1-0.9V, and the average value is 0.4-0.5V.
The faster the voltage frequency of oxygen sensor changes, the better the sensor is. If the voltage is 0v or 1v or even unchanged, it means that the oxygen sensor is seriously aged and needs to be replaced in time.