How to Deal with Failed Environmental Protection Standards?
3 Answers
Activity can be restored through cleaning, but poisoned failure or damage requires replacement. The ignition gap can also be adjusted, but if spark plug erosion or end of service life is detected, replacement is necessary. The oxygen sensor plays a crucial role in exhaust emission testing, and it is recommended to inspect and clean it along with the three-way catalytic converter. Cleaning the throttle, fuel system, intake tract, fuel injectors, etc., and thoroughly removing carbon deposits inside the engine can significantly improve engine performance.
Last time I had my car repaired, I came across a vehicle that failed the environmental protection test. The main causes are usually a clogged catalytic converter or a malfunctioning oxygen sensor, leading to excessive emission levels. Don’t panic—find a reliable repair shop to inspect it. They’ll use specialized tools to test the exhaust and identify the issue. The most common problem is severe carbon buildup in the catalytic converter, which can be improved by cleaning or replaced if necessary. Aging or contamination of the oxygen sensor can also affect emission data, and cleaning or replacing it should solve the issue. An imbalanced air-fuel mixture or a dirty air filter can also cause environmental problems. After addressing these, a retest of the exhaust emissions should help you pass. To prevent issues, avoid using low-quality fuel to save money and perform regular engine maintenance, such as checking the air filter every 10,000 kilometers. I’ve seen many car owners overlook these small details, only to face fines and delays during annual inspections. Early detection and repair save hassle in the long run.
My old car failed the annual inspection due to environmental non-compliance, and I was extremely nervous at the time. The inspector said the emissions exceeded the standard, so I immediately drove to a repair shop for a check. They found the air filter was clogged with dust, affecting the air intake. The mechanic replaced the filter and cleaned the throttle, and the car passed the re-inspection on the first try. The whole process cost just over 200 yuan, much simpler than I expected. Since then, I’ve become smarter—I inspect my car every six months: first checking the dashboard for warning lights, sniffing the exhaust for unusual odors, and regularly replacing the air filter and engine oil. For prevention, I opt for fuel with cleaning additives to reduce carbon buildup. Remember, don’t delay if your car fails environmental standards—procrastination leads to higher repair costs and worsens urban air quality. As car owners, a little extra attention can save money and contribute to greener travel.
