Tricks to Passing a Smog Test
Nearly everyone is nervous prior to his or her smog test. Here are a few tricks that will help your vehicle pass the test. Below you will find some of the most common tricks used to pass the test.
1. You want your car to be warmed up properly and running its best. Your car engine burns fuel, to make sure there is proper combustion your engine needs to warm-up. Drive around for at least twenty minutes before getting your car tested. If it takes you twenty minutes to reach the station, you are good to go!
2. Use fuel additives because these additives can help you a lot when you are trying to decrease your emission level. A fuel additive is usually poured into your car’s gas tank while you are refueling. The purpose of the fuel additive is to assist with cleaning any carbon deposits that are in your engine’s exhaust and intake paths. This allows for air and fuel to flow easily through these passages. This action lowers your emission levels and improves combustion and your engines overall performance.
Important note: Be sure to read the fuel additive’s label concerning smog testing your vehicle while the additive is in your gas tank or following the flushing out of the additive.
3. Be sure your tires are inflated to the proper level. During your smog inspection, the technician may have to drive your car on what is called a ‘dynamometer’ as part of the testing process. By ensuring that the tire pressures on your car are correct, you will have a more accurate smog test. This will also improve your cars overall output of emissions, by helping your engine maintain a continuous, steady load. In fact, having your tire pressures correct and even could be the factor that decides whether your vehicle fails or passes the smog test.
4. If it is almost time for you to change your oil, get it done prior to your smog check. The positive crank ventilation (PCV) system of your car has been specially designed to let your engine breathe the fumes that are located in the oil compartments. These fumes are burned during the combustion process. If your engine’s oil is contaminated because of inadequate oil changes, it could cause a failed smog test.
Avoiding changing the oil in your car not only causes your car to fail a smog inspection, it also causes premature wear on your engine. Always change the oil in your car to ensure the best engine performance.
5. If your check engine light/malfunction indicator lamp is illuminated, you need to find a way to turn it off. A check engine light/malfunction indicator lamp that is constantly on will automatically cause you to fail the smog test. If you take your car to a certified repair technician, he should be able to diagnose the reason your check engine light/MIL is remaining illuminated. He will offer you an estimate to have the problem fixed following his evaluation. If you are interested in diagnosing the problem yourself, there are tools available at the majority of auto parts stores that allow you to retrieve the diagnosis code, which will assist you in diagnosing the problem.
Note: The smog technician is not able to refuse testing your vehicle just because of the illuminated check engine/MIL. The technician has to do the smog check, but he will then fail your car.
Reasons Cars Failed the Smog Test
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