How to Determine if the Catalytic Converter is Clogged?

[MacCassidy]

Whether the catalytic converter is clogged can be judged based on its condition. The symptoms of a clogged catalytic converter can be divided into three stages according to severity: 1. Slight clogging stage: Chemical complexes are adsorbed on the surface of the catalyst, only showing reduced exhaust purification function and exceeding emission standards. Colored smoke can usually be seen coming out of the exhaust pipe. 2. Moderate clogging stage: Chemical complexes have accumulated to a certain extent on the catalyst surface. At this stage, exhaust back pressure increases, fuel consumption rises, and power decreases. The engine warning light usually comes on. 3. Severe clogging stage: Due to serious clogging, the working temperature of the catalytic converter rises. This stage is characterized by a significant drop in power, frequent stalling, and in severe cases, the exhaust pipe may turn red, produce abnormal noises, and emit foul odors.