Where is the fault if the Verna's tachometer doesn't move?

[ODamian]

Beijing will directly implement the China VI-b standard from July 1, 2020. Here is a related introduction about China's vehicle emission standards: 1. Introduction to vehicle emission standards: Vehicle emission standards refer to the regulations on the content of harmful gases such as CO (carbon monoxide), HC+NOx (hydrocarbons and nitrogen oxides), and PM (particulate matter, soot) emitted from vehicle exhaust. 2. Current status of China's vehicle emission standards: China has its own national conditions, and the background for implementing emission standards is also different from that of Europe. The most directly involved issue is the urban-rural disparity. Therefore, China should have its own standards. The pollutant emission limits in China's motor vehicle pollutant emission standards are generally equivalent to the EU emission standards, so similar terms are also used domestically, but there are still certain technical differences between the two.