In today’s world, as the number of motor vehicles on the road increases, the impact of exhaust emissions on the environment has also increased.
For this reason, the United States and European Union have passed legislation to set limits in order to control emissions. The Clean Air Act requested 33 states and local areas to conduct regular smog test for vehicle inspections. Most the localities have used OBD technology to inspects vehicle in use, which resulted in the practice of OBD Smog Test. The test is also known as smog check, I/M readiness testing or emission test.
According to the Environmental Protection Agency (EPA), typically a one passenger vehicle used daily equates to 4.6 metric tons of carbon dioxide annually.
So, what will help with this grand problem?
