How often should the car oxygen sensor be replaced?
How often should the car oxygen sensor be replaced?
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 automobile exhaust emission. But what we don't know is that the oxygen sensor is actually a fragile product and naturally has a service life.
Of course, it should be decided according to the actual situation. We can judge the fault by observing the color of the top of the oxygen sensor (the normal color is light gray). If it is white, 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 is a black roof, it is mainly caused by carbon deposition. Just 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, leading to an increase in 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 has to be mentioned, because it was originally used to judge the working state of three-way catalysis, so it will not save fuel after replacement.
How often does the car oxygen sensor need to be replaced?
In fact, there is no fixed replacement cycle for the oxygen sensor of the automobile, but it is recommended to replace the oxygen sensor for the automobile with a distance of more than 6,543,800 kilometers. The price of oxygen sensor is generally between 150-400, which is divided into pre-oxygen and post-oxygen. It is suggested that self-purchasing owners choose formal channels. After all, it's worth it.
Automobile oxygen sensor is the key feedback sensor in the control system of EFI engine, and it is the key component to control automobile exhaust emission, reduce automobile pollution to the environment and improve the fuel combustion quality of automobile engine. The oxygen sensor is installed on the engine exhaust pipe. Automobile oxygen sensor is the key feedback sensor in the control system of EFI engine, and it is the key component to control automobile exhaust emission, reduce automobile pollution to the environment and improve the fuel combustion quality of automobile engine. There are two kinds of oxygen sensors: zirconium dioxide and titanium dioxide.
Oxygen sensor is a measuring element that uses ceramic sensor to measure the oxygen potential in various heating furnaces or exhaust pipes, and calculates the corresponding oxygen concentration according to the principle of chemical balance, so as to monitor and control the air-fuel ratio of combustion in the furnace, and ensure the product quality and exhaust gas emission to meet the standards. Widely used in atmosphere control of coal-fired, oil-fired and gas-fired kilns.
Once the oxygen sensor fails, the computer of the electronic fuel injection system can't get the information of oxygen concentration in the exhaust pipe, and can't feed back the air-fuel ratio, which will increase the fuel consumption and exhaust pollution of the engine, and make the engine have some faults such as unstable idle speed, fire and surge. Therefore, it is necessary to troubleshoot or replace it in time. How often does the automobile oxygen sensor need to be replaced @20 19?