How to Deal with Unqualified Exhaust Emissions?
2 Answers
Methods to handle unqualified exhaust emissions mainly include 1. Replace and clean the spark plugs. Spark plugs are crucial components responsible for igniting and starting the car. If they are not cleaned or replaced for a long time, carbon buildup and aging on the spark plugs can lead to incomplete gasoline combustion due to reduced ignition efficiency, resulting in emissions that fail to meet standards. 2. Replace the carburetor. The carburetor's role is to atomize gasoline, ensuring more complete combustion. If the carburetor is not cleaned for an extended period, it may cause incomplete gasoline atomization, leading to incomplete combustion in the engine. This not only results in significant carbon buildup but also causes emissions to fail standards. 3. Replace the oxygen sensor. The primary function of the oxygen sensor is to detect the oxygen concentration in the engine's exhaust gases. It measures the oxygen content in the exhaust and determines whether the gasoline has been fully combusted. If the oxygen sensor is faulty, it cannot detect whether the exhaust meets standards, leading to a failed annual inspection.
I've experienced failing the emissions test before, and it was really frustrating when my car didn't pass the annual inspection. After checking, it turned out the catalytic converter was clogged - when that gets too dirty, it affects exhaust emissions. Other common issues include worn-out spark plugs or a clogged air filter. You can first check if any warning lights are on the dashboard. If so, take it to a repair shop to read the trouble codes and pinpoint the problem. Replacing these parts isn't too expensive, just a few hundred yuan can fix it. Don't risk driving illegally and getting fined, as environmental checks are strict nowadays. Drive smoothly without sudden acceleration, use high-quality gasoline to reduce carbon buildup, and do regular maintenance like changing filters to prevent many issues. In short, addressing problems early saves hassle and ensures safety - don't wait until major repairs are needed.
