What symptoms will a car exhibit if the three-way catalytic converter has issues?

[DiWillow]

Symptoms of a faulty three-way catalytic converter in a car: 1. Decreased engine power performance and increased fuel consumption; 2. Disordered air-fuel mixture concentration leading to ignition difficulties or incomplete combustion; 3. Increased exhaust channel resistance and worsened emissions; 4. Engine overheating, lack of power, and unpleasant exhaust odor. The three-way catalytic converter is an important external purification device installed in the automotive exhaust system. It converts harmful gases such as CO, HC, and NOX emitted from vehicle exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. Since this converter can simultaneously transform the three major harmful substances in exhaust gases into harmless substances, it is called a three-way catalytic converter.