How often do car sensors change?

Generally speaking, cars that travel more than 6.5438+10,000 kilometers need to replace the oxygen sensor once. Automobile oxygen sensor is the key feedback sensor in the control system of EFI engine, which is used to control the emission of automobile exhaust. But what we don't know is that the oxygen sensor is actually a fragile product and naturally has a service life.

Matters needing attention

If it is a white tip, it means that the oxygen sensor has been polluted by silicon to a certain extent and needs to be replaced in time. If it is brown, it is caused by lead pollution and must be replaced. But if it's a black roof, it's mainly caused by carbon deposition, you just need to clean it up.

We should know that when the oxygen sensor ages to a certain extent, it will definitely have a great impact on the air-fuel ratio of the car, which will lead to the problem of increasing fuel consumption of the car. Then replacing a new oxygen sensor at this time can naturally save fuel. However, if the rear oxygen sensor is replaced, it must be mentioned separately, because it is originally used to judge the working state of three-way catalysis, so it will not save fuel after replacement.