How to Solve the Problem of Failing Vehicle Emission Test?

[EmersonDella]

There are 4 solutions to address the issue of failing vehicle emission test: 1. Replace or clean the spark plugs, as carbon deposits on spark plugs can lead to incomplete combustion of gasoline: Spark plugs are crucial components responsible for igniting the engine. Over time, carbon buildup and aging of spark plugs can cause incomplete combustion of gasoline, resulting in emissions that fail to meet standards. 2. Replace the oxygen sensor if it is damaged and unable to detect whether the exhaust meets standards: The primary function of the oxygen sensor is to measure the oxygen concentration in the engine exhaust. By detecting the oxygen content in the exhaust, it determines whether the gasoline is fully burned. 3. Replace the three-way catalytic converter, as prolonged lack of cleaning can lead to clogging from accumulated impurities, rendering the converter ineffective: The main role of the three-way catalytic converter is to filter and purify exhaust gases. If not cleaned for a long time, accumulated impurities can clog the converter, causing it to lose its function and resulting in non-compliant emissions. 4. Clean the carburetor, as long-term neglect can cause incomplete gasoline atomization: The carburetor's function is to atomize gasoline, ensuring it burns more completely. If the carburetor is not cleaned for an extended period, it may lead to incomplete atomization of gasoline. This results in incomplete combustion within the engine, not only causing significant carbon buildup but also leading to emission failures.