What are the standard values for vehicle exhaust emission testing?

1 Answers
Johnson
07/30/25 2:05am
Automotive environmental exhaust emission testing standards are as follows: the limit for carbon monoxide is 6.3g/km, and the combined limit for hydrocarbons and nitrogen oxides is 2.0g/km. The general process for vehicle exhaust emission testing is as follows: Information Entry: Computerized entry of information, registration of vehicle details, and allocation of inspection lanes based on vehicle characteristics. This process is fully automated by the computer system. Designated Inspection Lane: The dispatcher will instruct staff to drive the vehicle to the designated inspection lane. Supervisors do not have the authority to change the inspection lane. Lane Confirmation: The control room verifies whether the vehicle has entered the correct inspection lane. Without this confirmation, the next step cannot proceed. Exhaust Emission Testing: This step is performed by the inspector following the prompts on the computer screen. Correct operation is essential for a successful test. The test results are compared against the standard values and then uploaded to the server by the system. Payment: Finally, proceed to the environmental testing fee counter for payment. If the vehicle fails to meet the standards, it must undergo rectification before retesting. Vehicles that pass the test will be issued an environmental certification label.
Was this review help?
3
4
Share
More Forum Discussions

How soon can I reschedule if I fail the Subject 4 test?

If you fail the Subject 4 test, you can reschedule after 10 days. Subject 4 is part of the motor vehicle driver's license examination. It separates the requirements for safe and civilized driving, safe driving skills under complex conditions, and emergency handling knowledge from the original Subject 1, and is conducted after the Subject 3 actual road driving test to further assess the candidate's traffic awareness. The main content of Subject 4 includes: safe and civilized driving operation requirements, safe driving knowledge under adverse weather and complex road conditions, emergency handling methods for situations like tire blowouts, and post-accident handling knowledge.
7
3
Share

What brand is the Jetour X70?

Jetour X70 is a brand under Chery, and it is a mid-size SUV produced by Chery. The dimensions of the vehicle are 4720mm in length, 1900mm in width, and 1695mm in height, with a wheelbase of 2745mm. It features a MacPherson strut independent front suspension and a multi-link independent rear suspension, with a front-wheel-drive layout. In terms of power, the Jetour X70 is equipped with a 1.5T turbocharged engine, delivering a maximum power of 115kW and a maximum torque of 230Nm, paired with a 6-speed manual transmission (MT).
8
2
Share

What should be paid attention to when taking delivery of a new car?

When taking delivery of a new car, you should pay attention to: 1. The vehicle certificate is a crucial document for the car and is also one of the necessary documents for registration. Only vehicles with this certificate meet the national requirements for automotive equipment quality and related standards; 2. The car purchase invoice is an important proof of purchase. When receiving the invoice, be sure to check whether the information on the invoice corresponds to the vehicle purchased by the owner; 3. According to relevant regulations, if the vehicle experiences malfunctions or damages caused by quality issues within a certain period and mileage, the manufacturer should provide repair, replacement, or refund services within the warranty period based on the three-guarantee service card.
19
4
Share

What to Do When Your Car Key Battery Dies?

When your car key battery dies, you can use the mechanical key to open the door. All keys have a hidden mechanical key, and the keyhole is also concealed. Here are some precautions when using the key: 1. Avoid placing the car key together with electronic devices like mobile phones and computers; 2. Do not throw the car key around; keep it in a fixed place; 3. If the car key gets wet, do not shake it forcefully or press any buttons. The correct approach is to open the key casing and dry it with a hairdryer. The car key is a component that can receive and transmit pulse signals, and the chip is part of the car's anti-theft system. The anti-theft system consists of the engine computer, anti-theft computer, ignition coil, chip key, and anti-theft indicator light.
2
1
Share

What Causes an Automatic Transmission Car to Fail to Engage Gear?

Reasons why an automatic transmission car fails to engage gear: 1. Possible internal failure of the gear shift assembly; 2. Possible malfunction of the control module inside the transmission; 3. Possible failure of the transmission gear position switch. The P-lock mechanism of the transmission consists of a lock gear, a lock pin, and a set of action mechanisms. When the gear lever is moved to the P position, the cable drives the connecting ball pin, causing the working pin to slide and engage the lock pin pawl with the parking gear, thereby achieving parking lock. The scientific parking method for an automatic transmission car is: after the car enters the parking space, first press the brake and shift to N gear, then pull up the handbrake, release the foot brake and turn off the engine, and finally shift to P gear and remove the key.
6
3
Share

How to Turn Off the BMW Auto Start-Stop Function?

Method to turn off the BMW auto start-stop function: The auto start-stop off button is located below the engine start button. You need to manually press the Aoff button to turn the auto start-stop function on or off. After the car is started, the auto start-stop function will automatically activate by default. If you do not wish to use this function, you can manually turn it off before driving. The illuminated button light indicates that the start-stop function is turned off, while the unlit button light means the function is active. The BMW X5 is positioned as a mid-to-large SUV, with body dimensions of 4930mm in length, 2004mm in width, and 1776mm in height, and a wheelbase of 2975mm. In terms of power, the BMW X5 offers two engine options: a 2.0T turbocharged engine and a 3.0T turbocharged engine. Both models are paired with an 8-speed automatic transmission.
5
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.