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Some Useful Information about the Emissions Test
Some states require for your vehicle to be regularly inspected. Part of such an inspection has to include the emissions test. In case you have a new vehicle then you probably don’t have as much to worry about. Older vehicles may have a problem though. Catching possible problems in addition to fixing those ahead of time is going to save you time as well as disappointment.
In order to conduct this type of exam, the technician will place a sampler into your vehicle’s tailpipe. This sampler device will sample the exhaust from your engine and will analyze the gas levels that are in the parts per million.
This special device is designed to sniff out or sense five kinds of gases: O2, CO, CO2, HC, and NOX. NOX is short for oxides of nitrogen, this is produced by the compression and heating of air that contains nitrogen. High levels of this compound makes it very toxic.
Oxygen is always present in the exhaust, there will be unburned oxygen present and released into the air. O2 is not harmful, but this does tell how efficiently your engine consumes fuel. Too much can be a bad thing as it might indicate that your engine has been modified in order to pass the emissions test.
In aside from those gases we mentioned earlier, CO and CO2 are also being tested for. Carbon monoxide or CO is very deadly, it is an odorless and colorless compound that is usually emitted by cars. CO2 or carbon dioxide, is known for being a major cause of global warming.
The last compound is HC or what is known as hydrocarbons. Hydrocarbons are unburned fuel. And just like a majority of the compounds mentioned in this article its not something you would want to breathe. It is the smog that you usually see in bigger cities.
How to pass the test
Your car needs to be in really good shape to pass this test. If you have not had a good tune up in quite some time, you need to have one before the next inspection.
If your check engine light is on, your vehicle will not be able to pass the inspection Just make sure to have your vehicle checked up if that light comes on. There are a variety of reasons as to why that light is on but none of them would be too expensive.
Emissions tests are there to ensure that the vehicles that are running around are not causing much harm to the environment. People might find these tests a burden but this is done to ensure that the environment and the people around are safe from harmful emissions from the vehicles that run around day in and day out. In addition to this, this will also ensure that your car won’t be breaking down any time soon and is running in tip top condition.

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