Remember, if you failed the emissions test, you are not only troubling your car but the whole environment as well. When failed the emissions test, always take your car to the garage for necessary servicing.As per the Traffic laws, if you fail the emission test, your car is not certified to be driven on the road as it is harmful for the environment as well as the engine of your car also may get misfired. So if you failed the test, don't drive your car and take it to the service center as soon as possible.