Views: 0 Author: Wondee Autoparts Publish Time: 2024-06-25 Origin: Wondee Autoparts
Many car owners have encountered malfunctions with the peroxide sensor, some of which have been encountered in new cars, and most 4S dealerships are unwilling to provide warranty, requiring car owners to pay for replacement. Today we will talk about the issue of oxygen sensors. First, what is an oxygen sensor? It is installed on the exhaust pipe to detect the oxygen content in the exhaust gas. If the oxygen content is too high, it indicates that there is too much intake and too little fuel injection. If the oxygen is not used up, more fuel injection will be adjusted. If the oxygen content is too low, it indicates that there is too much fuel injection. If there is not enough oxygen, it will be adjusted to reduce fuel injection. Therefore, the oxygen sensor is the most important component for fuel correction, constantly finely adjusting the air-fuel ratio to the optimal state. After it breaks down, the engine fault light will light up, and the computer detects a fault code related to the oxygen sensor.
An oxygen sensor fault code appeared, and someone replaced the oxygen sensor. However, a few days later, the fault code appeared again. Is it a quality issue with the oxygen sensor that is broken again? In fact, in many cases, although there are fault codes for the oxygen sensor, the real problem may not be with the oxygen sensor. It may be due to other issues. After replacing it, the fault light comes on again a few days later, indicating that the root cause of the problem has not been found. For example, poor fuel quality and excessive carbon accumulation can lead to poor combustion conditions, which can cause damage to the oxygen sensor and result in fault codes, with fuel issues accounting for the majority.
The gasoline at private small gas stations is very cheap, and many car owners go there to refuel. Among them, some gas stations have substandard fuel, excessive lead and silicides, which can cause damage to oxygen sensors and even ternary catalytic converters. The fault code of the oxygen sensor has just appeared, but it is actually just surface poisoning, which is still very mild. If high-quality gasoline is replaced at this time, the toxic substances on the surface can be eliminated, and the oxygen sensor can be restored to normal. So after the fault code appears, it is not necessary to replace the oxygen sensor. First, replace the fuel. If the fault persists, then replace the oxygen sensor. If it is caused by a gasoline problem, only replace the oxygen sensor without changing the gasoline. After replacing it, a fault code will appear shortly after. If there is too much carbon accumulation in the cylinder, which leads to poor combustion, a large amount of carbon deposits will adhere to the surface of the oxygen sensor, making it impossible for exhaust gas to enter, and it will also cause damage to the oxygen sensor. It is necessary to first remove the carbon deposits and then check if the oxygen sensor is truly faulty. Therefore, the fault code of the oxygen sensor is not so easy to repair, and requires in-depth analysis to find the root cause of the problem, rather than replacing it from the beginning.
Someone asked if it is possible to continue driving without repairing the fault code of the oxygen sensor? It can continue to be driven, and there may not be any abnormalities while driving. However, fuel consumption will slightly increase and emissions will not meet standards, so although it can be driven, timely maintenance is necessary. During regular refueling, it is important to pay attention to fuel quality. Many malfunctions can be caused by poor fuel, such as irregular shaking during idle, rapid increase in carbon deposits, damage to oxygen sensors and three-way catalysts, and so on.
From：WONDEE Auto parts
2024-06-25
