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What does 'invalid electronic capture of exhaust emissions' mean?

1 Answers

VanPatrick

07/29/25 3:19pm

If the vehicle has recently undergone maintenance and it is confirmed that the exhaust emissions will not exceed the standard, then it is possible that there is an issue with the testing equipment or interference from other vehicles nearby, resulting in an invalid test. Below is relevant information about vehicle exhaust emission testing: 1. Introduction: The analysis and measurement of the composition and concentration of exhaust gases emitted by motor vehicles during idle or operating conditions, conducted on-site or on a dynamometer. 2. Testing Items: The large amount of harmful exhaust gases emitted by motor vehicles during operation is a major mobile source of environmental air pollution, and exhaust emission testing is an important part of environmental air pollution monitoring. The main items tested include carbon monoxide, nitrogen oxides, hydrocarbons, photochemical oxidants, and smoke density.

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