What to Do If Vehicle Fails Emission Test?

[StAriana]

Solutions for failing vehicle emission tests include: 1. Take the vehicle to a professional repair shop for engine internal cleaning; 2. Use fuel additives and catalytic converter cleaners when refueling; 3. Replace spark plugs in a timely manner. Vehicle inspections primarily check whether the engine, chassis, body, and their auxiliary equipment are clean, complete, and functional, whether the paint finish is uniform and aesthetically pleasing, whether major assemblies have been replaced, and whether they match the initial inspection records. Items checked during a vehicle inspection include: 1. Inspect the body surface for scratches or dents; 2. Check for signs of repainting in the engine compartment and along the edges under the vehicle; 3. Examine whether the gaps between doors and both sides of the front hood are symmetrical and if there are any excessively large or small gaps.