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How to Mask the Three-Way Catalytic Converter Fault Code?

1 Answers

RyanDella

07/30/25 8:45am

You can use an oxygen sensor masking cover to mask the three-way catalytic converter fault code. The principle is to reduce the receiving area capacity of the car exhaust's oxygen compounds, hydrogen, oxygen, and hydrocarbons, thereby improving the conversion efficiency of the three-way catalytic converter. Some oxygen sensor masking covers are equipped with a filter screen, designed to strictly filter and prevent soot from coating the oxygen sensor probe, which would otherwise reduce the sensor's sensitivity. After filtration, the oxygen sensor's sensitivity is enhanced, thus improving the conversion efficiency of the three-way catalytic converter. Below are additional details: 1. There are various types of oxygen sensor masking connectors. Materials include iron plating and stainless steel. Iron plating is prone to rust and may become impossible to remove after prolonged use. Stainless steel does not rust and has a longer lifespan. Therefore, it is advisable to choose stainless steel. 2. The three-way catalytic converter can transform harmful gases in the exhaust into harmless gases, playing a significant role in environmental protection.

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