What to Do When the Three-Way Catalytic Converter Aging Malfunction Light Comes On?
3 Answers
Decode the vehicle's computer. If the light remains on after decoding, it indicates that the issue is not with the computer but likely with the vehicle's oxygen sensor. Below is relevant information: 1. Three-Way Catalytic Converter: The three-way catalytic converter is an external purification device in the vehicle's exhaust system. Since the catalyst primarily consists of three precious metals and can catalyze the three most harmful pollutants through oxidation and reduction reactions, it is appropriately called the three-way catalytic converter. 2. Preventive Measures: Reduce idle time while driving, as prolonged idling can raise the engine's internal temperature. The catalytic converter has a temperature limit, especially in summer when temperatures are already higher than usual. Therefore, it's essential to avoid idling for more than 10 minutes. Additionally, avoid using leaded gasoline and oil additives.
Last time my car's catalytic converter aging light came on, it gave me a real scare. I drove straight to the repair shop for a check-up. They used a tool to read the trouble codes, and sure enough, the catalytic converter was the issue. Common causes of aging include using low-quality gasoline or skipping regular maintenance, leading to deposits clogging the converter. A simple cleaning might not do the trick—once it's aged, you usually need to replace it entirely. During the inspection, don't forget to check the oxygen sensor to see if a faulty signal is misleading the warning light. Don't delay; if left too long, fuel consumption can skyrocket, and the engine might suffer damage too. Pay attention to your driving habits, use good-quality fuel to reduce carbon buildup, and stick to regular maintenance as a preventive measure. Drive safely—don't let small issues turn into big problems.
When you see this warning light, don't panic. My first recommendation is to visit a professional shop to read the fault codes and confirm the cause, as sometimes sensor malfunctions can trigger false alarms. If it's indeed a catalytic converter aging issue, check the exhaust backpressure and oxygen sensor signals to assess severity. Aging may stem from poor engine combustion or prolonged use of low-quality fuel, requiring inspection of fuel injectors or ignition system functionality. In severe cases, the catalytic converter needs replacement, along with repairing related components like spark plugs. Pay attention to the emission system during routine maintenance, and use high-quality gasoline to reduce clogging risks. Regular upkeep can extend catalytic converter lifespan and prevent unnecessary troubles.
