How to Deal with Substandard Vehicle Exhaust Emissions?

[CamilaLee]

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.