What to Do If Caught for Excessive Emissions?
2 Answers
You can check with the traffic police department to see if there is any violation. If there is a violation, then go to pay the fine; if there is no violation, then no action is needed. Below are the reasons for excessive emissions: 1. Poor quality gasoline: Poor quality gasoline may cause excessive vehicle emissions. 2. Malfunctioning exhaust gas recirculation system: If the exhaust gas recirculation system is not working properly, faulty input signal sensors may lead to an overly lean air-fuel mixture. 3. Inaccurate ignition timing: Misfires in the ignition system or insufficient ignition energy can cause incomplete combustion of the air-fuel mixture. 4. Low cylinder pressure: If the engine operating temperature is too high, check the diagnostic tool to see if the engine temperature is excessively high.
Getting caught for excessive exhaust emissions can be quite a headache, and I've been through this before. Over-limit emissions are usually caused by a deteriorating catalytic converter or severe engine carbon buildup, so it's important to address it promptly to avoid fines or demerit points. After getting it checked at a repair shop, I found out the oxygen sensor was faulty—replacing it for a few hundred yuan solved the problem. Regular maintenance is crucial, such as changing the engine oil and air filter on schedule and using higher-grade gasoline to reduce carbon deposits. Neglecting this could lead to issues during the annual inspection, affecting your ability to drive legally. In short, don't procrastinate—find a reliable repair shop to fix it quickly, saving money and contributing to environmental protection.