What should I do if the car is environmentally friendly? ——10 days of hot topic analysis and solutions
Recently, the issue of vehicles failing annual environmental inspections has become a hot topic on the Internet. Many car owners are troubled by non-compliance with exhaust emissions during annual inspections. This article combines popular data and solutions in the past 10 days to provide car owners with a structured guide.
1. Statistics of hot spots across the entire network (last 10 days)
| platform | Amount of related topics | highest heat index | main focus |
|---|---|---|---|
| 286,000 | 925,000 | Three-way catalytic converter failure | |
| Tik Tok | 152,000 | 3.4 million views | OBD detection tips |
| Zhihu | 4,372 | 87,000 likes | Fuel Additive Review |
| Baidu Tieba | 18,000 posts | 560,000 reads | Scalper Agency Risks |
2. Common reasons for failure in environmental testing
| Fault type | Proportion | Typical symptoms |
|---|---|---|
| Three-way catalytic converter failure | 43% | The exhaust smells like rotten eggs |
| Oxygen sensor failure | 27% | Fuel consumption suddenly increases |
| EGR valve clogged | 18% | Engine shaking |
| Air filter is dirty | 12% | Weak acceleration |
3. Practical Solution Guide
1.Pretreatment plan: It is recommended to run at high speed for 30 minutes before testing to keep the engine at high temperature. Adding regular fuel cleaners (such as TCP, G17) can temporarily reduce HC emission values by 15%-20%.
2.Hardware repair solutions:
| part | maintenance cost | Effect duration |
|---|---|---|
| Clean three-way catalytic converter | 200-500 yuan | 3-6 months |
| Replace oxygen sensor | 400-800 yuan | More than 2 years |
| Engine carbon deposit cleaning | 300-1000 yuan | About 1 year |
3.policy remedies: According to the "Motor Vehicle Emission Inspection Regulations", those who fail to pass the test for the first time can enjoy free re-inspection. Some areas provide maintenance subsidies. For example, Shenzhen provides a 30% subsidy for the replacement of three-way catalytic converters (up to 500 yuan).
4. Special reminder from experts
• Be wary of scalpers: Recently, cases of using sulfur dioxide cheating devices have been discovered in many places, and the vehicle owners involved will have their driving licenses revoked.
• Note for diesel vehicles: National V and above models must ensure that DPF regeneration is completed, otherwise NOx emissions will inevitably exceed the standard.
• Advantages of new energy vehicles: pure electric vehicles are exempt from exhaust gas inspection, while hybrid vehicles need to pay attention to engine maintenance intervals
5. Car owner experience sharing
A popular Douyin video shows that using No. 98 gasoline combined with high-speed training helped 87% of vehicles that were slightly over the standard pass the re-inspection. Zhihu's highly praised answer suggested that old vehicles can be diagnosed with OBD in advance and read the fault codes for targeted repairs.
After the implementation of the new environmental testing regulations, the national average pass rate dropped by 12%. It is recommended that car owners establish regular emission testing habits to avoid being caught off guard when problems are discovered during centralized annual inspections. Save the maintenance certificate to enjoy the "maintenance extension" policy introduced in many places.
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