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      Automobile exhaust gas catalytic converter what are the common symptoms
      source:/  |  Release time:2023-10-09
        The common faults of the three-way catalytic converter are: the performance of the three-way catalytic converter deteriorates; the exhaust of the three-way catalytic converter is not smooth after the core is blocked, and the high exhaust back pressure occurs, which makes the exhaust gas flow back into the engine. Including the following phenomena: 1 carbon ash accumulation, pollution. After the combustion of leaded gasoline, the ternary catalytic converter will be damaged quickly, and the phosphorus and zinc in the engine oil will also pollute the ternary catalytic converter. 2 ceramic core is broken. The long-term effect of thermal cycling, external knock and kneading, are likely to make ceramic core damage. 3 ceramic core melting. When the three-way catalytic converter works normally, the temperature in the three-way catalytic converter can generally reach 500-800 ° C, and the temperature at the outlet is about 30-100 ° C higher than that at the inlet. However, the concentration of CO and HC in the exhaust gas will be too high when the mixture is too thick or the combustion is not complete, which will increase the burden of the three-way catalytic converter and make the temperature rise too much, will make three-way catalytic converter performance deterioration, and even melting the carrier. 4 three-way catalytic converter is usually equipped with exhaust temperature sensor, when the temperature is irregularly high, the electronic control unit will block the secondary air supply, interrupt the catalytic conversion reaction.

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