1. A broken three-way catalyst will lead to excessive exhaust emissions of vehicles

 Three-way catalyst is the core component of exhaust emissions purification. If it is damaged or failed, the harmful substances in the exhaust gas will not be effectively purified and processed, resulting in exhaust emissions of vehicles exceeding national and local environmental protection standards, causing harm to the environment and human health.

 2. A broken three-way catalyst will also lead to a decline in the power performance of vehicles

 Three-way catalyst can convert harmful substances in exhaust gas into harmless substances, thus reducing the damage and corrosion of the engine.If the three-way catalyst is damaged or failed, the harmful substances in the exhaust gas will directly enter the engine and cause serious damage to the engine, resulting in a decline in the power performance of the vehicle, poor acceleration and other problems.

 3. A broken three-way catalyst will also lead to increased fuel consumption of vehicles

 Due to the failure of the three-way catalyst, the harmful substances in the exhaust gas will cause damage to the engine, resulting in reduced combustion efficiency of the engine and increased fuel consumption.This will not only increase the cost of using the car, but also cause more pollution to the environment.

 4. The exhaust pipe is not smooth and the engine power is decreased This is more obvious in turbocharged models. After the three-way catalyst is blocked, when high-pressure exhaust is needed, the intake volume is affected by the blocked exhaust, the engine power is reduced, the power is reduced, the refueling is weak, and the running will feel uncomfortable.Especially when climbing, the feeling is more obvious. At this time, in order to obtain power output, the owner will usually increase the throttle, resulting in increased fuel consumption.

 5. Exhaust pipe blockage

 The normal working temperature of the three-way catalyst is generally 400-800 °C. Once blocked, the exhaust is affected, the high-temperature gas is gathered, leading to the continuous heating of the three-way catalyst and the exhaust pipe. When the temperature rises to the ignition point of the adjacent parts or when the relatively easy-to-burn object touches the red exhaust pipe, it is easy to spontaneous combustion.

 6. Engine jitter, fault light and flameout

 When the three-way catalyst is seriously blocked, due to the inability to discharge the exhaust gas in time, it is inevitable to cause back pressure backflow. When the pressure exceeds the pressure value discharged by the engine and rebounds to the combustion chamber, the engine will jitter, pant and flameout.