How to Deal with Substandard Vehicle Exhaust Emissions?
2 Answers
Methods to address 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 substandard emissions. 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 deposits but also causes emission issues. 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 to determine whether the gasoline is fully burned. If the oxygen sensor is faulty, it cannot detect whether the exhaust meets the standards, which may lead to failure in annual inspections.
I've been driving an old car for over a decade and encountered excessive exhaust emissions multiple times. Don't panic, check step by step. First, go to a repair shop and have the mechanic check the fault codes—it might be due to a clogged or failed catalytic converter, which is a common cause. They may suggest replacing the catalyst or cleaning the fuel injectors and throttle body to help the fuel burn more completely. Worn-out spark plugs can also affect emissions, so try replacing them yourself. A dirty air filter can obstruct airflow, so clean or replace it promptly. Don’t slack on regular maintenance—change the oil periodically and use high-quality fuel to avoid carbon buildup. Emission issues directly impact annual inspections, and failing could result in fines of thousands or even affect driving safety. I recommend getting an annual exhaust emissions test to catch and fix problems early, saving money and hassle.
