What should I do if the automobile exhaust test is unqualified?

Keep the car hot, even if you are waiting in line for the bus and have nothing to do, don't close your door just because you save a little oil. Before the test, start the car with two or three cars in front, and hit the accelerator at high speed for a few minutes. (It usually takes 3-5 minutes, so don't be stingy with that oil at this time), and then the exhaust emission test will definitely pass.

The reason is that it is the most unwise to check the line on a cold car. The optimum temperature of three-way catalytic converter is 400 to 800 degrees, and it takes a long time from cold car to 400 degrees. (The detection point is a warm reminder that NO exceeds the standard. When the temperature of thinking is too high, NO can easily exceed the standard. )

If the throttle temperature reaches above 400 degrees, and this temperature can be maintained all the time.

/iknow-pic.cdn.bcebos.com/f2deb48f8c5494ee4956f66222f5e0fe99257e51"target =" _ blank "title =" "class =" ikqb _ img _ alink ">. /iknow-pic . cdn . BCE Bos . com/F2 deb 48 f 8 c 5494 ee 4956 f 66222 f 5 E0 Fe 99257 e 5 1？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/ F2 deb 48 F8 c 5494 ee 4956 f 66222 f 5e 0 Fe 99257 e 5 1 "/>；

Extended data tail gas detection process

1, computer input information. This link is carried out in the login booth, and the purpose is to assign detection lines according to the characteristics of vehicles, which are automatically completed by the computer.

2. Go to the designated detection line. The dispatcher guides the vehicle into the detection line designated by the computer, and the intermediate personnel have no right to change the detection line.

3. Confirmation information of the central control room. This link confirms that the inspected vehicle enters the correct detection line, otherwise it cannot enter the next link.

4. Implement tail gas detection. This link is carried out by the inspector according to the prompt on the computer screen, and the detection can be successful only if the operation is correct. The test results are uploaded to the server by the system.

5. Environmental inspection fee. After the test is completed, the owner will queue up to pay the fee at the environmental charge window in the service hall according to the charging standard indicated on the environmental protection test information sheet.

6. Distribution of environmental protection signs. Issue environmental protection signs to qualified vehicles, and the auditors will inform the owners of unqualified vehicles, and ask them to re-examine the vehicles with maintenance certificates after maintenance.