What is the method for Euro II standard vehicles to pass the annual exhaust emission inspection?
2 Answers
Euro II standard vehicles can pass the annual exhaust emission inspection by improving fuel quality and cleaning the three-way catalytic converter. Here is an introduction to the relevant content of vehicle annual inspection: Brake light positions: Most vehicles have three brake lights, with one on each side of the upper and lower parts of the rear, and an additional high-mounted brake light on the rear windshield. Brake lights: Some vehicles only have two brake lights, meaning they lack a high-mounted brake light. Lighting system: Brake lights are a crucial part of the lighting system and are also one of the most easily damaged lighting components in a vehicle. Meaning: Vehicle annual inspection refers to a mandatory test for every vehicle that has obtained an official license plate and registration certificate, equivalent to an annual health check for the vehicle based on the technical conditions for safe operation of motor vehicles.
For a Euro 2 standard car to pass the annual exhaust emission test, I have a few practical tips. The most important thing is to keep the engine running clean, as the old engines in Euro 2 cars are prone to carbon buildup, which affects emissions. One or two weeks before the test, I replace the air filter and oil filter to ensure smooth air intake; then I fill up with high-quality fuel, preferably with a higher octane rating, to reduce impurities. Engine warm-up is also crucial—on the day of the test, drive on the highway or uphill for about half an hour beforehand to get the catalytic converter working at optimal temperature. When driving normally, avoid slamming the accelerator or prolonged idling—driving gently helps lower exhaust emissions. Also, check if the catalytic converter is clogged and clean it if necessary. If the exhaust readings exceed the limit, it’s likely due to a faulty oxygen sensor, so have a mechanic replace it. In short, regular maintenance is key—even though Euro 2 cars are old, careful upkeep will help them pass the test smoothly.
