【Car owner’s home car knowledge】We mentioned in the previous article that recently, car owners have reported to this website that their newly purchased cars have experienced frustrations and lack of power. The car owner suspected that there was a quality problem with the car, and then went to the 4S store for inspection. The answers he got were surprisingly uniform: the oxygen sensor and three-way catalytic converter were damaged because of oil quality problems.
Faced with this situation, besides blaming the gas station, what can car owners do to make the oxygen sensor and three-way catalytic converter last longer?
Through the previous article, I believe everyone should have a certain understanding of oxygen sensors and three-way catalytic converters. Although they are two different components, they have a common purpose: to reduce the emission of three pollutants, hydrogen compounds (HC), carbon monoxide (CO) and nitrogen oxides (NOX) into the air; the difference is that the pre-oxygen The function of the sensor is to reduce the generation of these harmful pollutants, while the function of the three-way catalytic converter is to convert these pollutants into harmless carbon dioxide, water and nitrogen through oxidation and reduction, and is a purification device.
During our visit to the after-sales department of the 4S store, we found that the oxygen sensor and three-way catalytic converter are durable products, which are not easy to break under normal circumstances, and do not require special maintenance. As long as you pay mor
【Car owner’s home car knowledge】We mentioned in the previous article that recently, car owners have reported to this website that their newly purchased cars have experienced frustrations and lack of power. The car owner suspected that there was a quality problem with the car, and then went to the 4S store for inspection. The answers he got were surprisingly uniform: the oxygen sensor and three-way catalytic converter were damaged because of oil quality problems.
Faced with this situation, besides blaming the gas station, what can car owners do to make the oxygen sensor and three-way catalytic converter last longer?
Through the previous article, I believe everyone should have a certain understanding of oxygen sensors and three-way catalytic converters. Although they are two different components, they have a common purpose: to reduce the emission of three pollutants, hydrogen compounds (HC), carbon monoxide (CO) and nitrogen oxides (NOX) into the air; the difference is that the pre-oxygen The function of the sensor is to reduce the generation of these harmful pollutants, while the function of the three-way catalytic converter is to convert these pollutants into harmless carbon dioxide, water and nitrogen through oxidation and reduction, and is a purification device.
During our visit to the after-sales department of the 4S store, we found that the oxygen sensor and three-way catalytic converter are durable products, which are not easy to break under normal circumstances, and do not require special maintenance. As long as you pay more attention to details in your daily life, you can extend their life to a great extent. Therefore, some of the suggestions I make below are simple usage precautions.
1. How to make the oxygen sensor last longer?
1. Inspect every 30,000km
Check the working status of the oxygen sensor every 30,000 kilometers. If it is aged or fails, clean or replace it with a new one in time. Because the three-way catalytic device and engine performance will be damaged due to the abnormal working of the oxygen sensor, do not lose the big for the small.
2. Do not let the oxygen sensor collide with hard objects
Because the oxygen sensor has a ceramic sensitive element, if it falls on the ground or collides with other hard objects, the severe vibration and impact may damage the ceramic element or heating element in the sensor.
3. Avoid pulling on sensor wires
This is the same as other electrical equipment. Excessive pulling on the sensor wire may lead to unreliable connection of the sensor, thus affecting the work of the oxygen sensor.
4. Do not flush the exhaust pipe after turning off the flame
When the engine just shuts down, be sure not to flush the exhaust pipe immediately. Because when the exhaust pipe is rapidly cooled by the outside, the ceramic sensitive element of the oxygen sensor will burst, causing damage to the oxygen sensor.
2. How to extend the life of the three-way catalytic converter?
1. Don’t go to small gas stations to refuel
As mentioned earlier, oil quality problems are the biggest cause of damage to the oxygen sensor and three-way catalytic converter. Therefore, car owners should avoid going to irregular gas stations to refuel as much as possible in daily use of their cars. If after filling up at a certain gas station, the vehicle suffers from frustration or lack of power, you must go to the 4S store to clean it and replace the gas station in time.
2. Avoid prolonged idling
When idling, a small amount of mixed gas in the engine will not be completely burned and will directly enter the exhaust system. If the idling time is too long, the exhaust system will continue to heat up and burn out the three-way catalytic converter. Therefore, it is important for drivers to avoid idling for long periods of time as much as possible. At the same time, the three-way catalytic converter should be checked regularly (but it must be operated after the temperature has dropped!). If there are traces of high-temperature burning and abnormal color, it means that the catalytic converter has been overheated and the working effect has been reduced.
3. Be careful not to bottom out the three-way catalytic converter
This is because the material used to make the three-way catalytic converter is very fragile and will break when it encounters a collision, causing the catalytic converter and exhaust system to become clogged. Therefore, car owners pay special attention to the car's underpinning. At the same time, the three-way catalytic converter should be checked regularly (but it must be operated after the temperature has dropped!) to see if there is any damage on the surface. After the temperature of the three-way catalytic converter has dropped, you can tap the metal surface with your hands or while driving. If you hear There is a sound similar to the breaking of ceramics inside, indicating that the catalytic converter is damaged and needs to be replaced.
in conclusion:Under normal car use, the oxygen sensor and three-way catalytic converter are not easy to break. Car owners can extend their life by paying more attention to details. In addition, if the car owner finds that his car has problems such as frustration and insufficient power, he must go to the 4S store to clean the oil line and replace the gas station in time.
