What are the manifestations of three-way catalytic converter failure?

The failure performance of ternary catalytic converter: 1. The performance of ternary catalytic converter begins to deteriorate; 2. After the core of the three-way catalytic converter is blocked, the exhaust starts to be not smooth, which will produce relatively high exhaust back pressure, and the exhaust gas will flow back into the engine. Three-way catalytic converter is an external purification device installed in the automobile exhaust system, which can change the harmful gases such as CO and HC discharged from automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction. The three-way catalytic reactor is similar to a muffler, which is cylindrical with a double layer of stainless steel plate outside, and is equipped with asbestos fiber blanket insulation material in the sandwich of double layer of thin plate, and a purifying agent is arranged in the middle of the mesh partition inside, which is composed of a carrier and a catalyst.