Is oxygen sensor cleaning useful?

Is the oxygen sensor cleaning useful? I believe that many friends will have such a question. Even if the oxygen sensor has been cleaned, it will not get much better, and the activity of the oxygen sensor cannot be restored. So, is the fact really like what everyone said? Next, we will reveal the mystery to everyone.

In fact, this still has to be decided according to the situation, ifFindIf the top of the oxygen sensor is black (mainly caused by carbon deposition), it is useful to clean it at this time. But if it is a white top or a brown top, it means that the oxygen sensor has been poisoned (the former is silicon poisoning, and the latter is lead poisoning). Regardless of the type of poisoning the oxygen sensor is, it is useless to clean it several times, and it needs to be replaced in time.

It is worth mentioning that we are talking about cleaning here, not directly flushing with water. This effect is not very obvious. Need to soak the oxygen sensor in (5-10%)The ferric trichloride hydrochloric acid solution can be taken out after about 10-15 minutes, and then rinse with water. Of course, after cleaning, we also need to make sure that the surrounding four holes are unobstructed. The second is to observe the bottom of the oxygen sensor. If the carrier inside is white after washing, then the oxygen sensor has basically recovered its activity at this time.