What to Do If a Vehicle Fails Emission Inspection?
1 Answers
Here are the methods to address a vehicle failing emission inspection: 1. Poor Fuel Quality: If low-quality fuel is frequently used, it can lead to excessive carbon deposits after combustion and may impair the performance of the exhaust purification system, reducing its lifespan and increasing pollutant emissions, resulting in failed tailpipe emissions. Therefore, before the annual inspection, it is advisable to fill up with high-quality gasoline and drive on the highway before testing. 2. Clogged or Poisoned Catalytic Converter: Frequent low-speed driving or the use of inferior fuel can cause the catalytic converter to clog or become poisoned and malfunction. In such cases, you can purchase professional cleaning agents to remove and clean the catalytic converter or drive at high speeds for a distance. High-speed driving is effective in cleaning the engine's fuel system and cylinders. Additionally, at high engine speeds, fuel burns more completely, helping to flush out dirt and impurities from the fuel system and remove carbon deposits from the valves, clearing blocked passages and achieving a cleaning effect. Additional Information: For non-commercial vehicles that fail emission inspections, the public security department will temporarily confiscate the vehicle's license until the issue is resolved and standards are met before allowing the vehicle back on the road. For commercial vehicles, the municipal transportation bureau will suspend their operational qualifications until the issue is resolved and standards are met before allowing them back into service. If a vehicle fails the emission inspection three times, it may face mandatory scrapping, which is an important point to note.
