
In some states, personal cars must be subjected to an emission and smog test to be legally registered. Failing an emission test is one of the stresses that you can go through as a car owner. It will translate to visiting the mechanic, and that means parting with some cash and wasting time. Fortunately, most of the causes of emission and smog test failure can be rectified at your mechanic’s and are not so costly. And it is advisable to have them correct not only to keep your car legally on the road but also to have it running at its optimal efficiency. But are you wondering where to take your vehicle for a smog check? For excellent services and honest smog check, you can count on Smog Mart.
So, what are some of the reasons that could make your vehicle fail an emission test?
Faulty EVAP
Automobiles come with a mechanism to prevent the discharge of gasoline vapors into the air. This system is called the Evaporative Emission Control System ( EVAP). Sometimes, this system could malfunction if there is a leakage in the interlinked vent s or vacuum hoses. Another problem could be a loose, broken, or cracked gas caps. Conducting tests can help to know where the problem lies and then correct it.
Bad Oxygen Sensor
A faulty oxygen sensor cannot correctly monitor the exhaust. Furthermore, it can lead to additional issues like overheating, poor acceleration, and loss of engine power. However, the licensing department is concerned only with the faulty oxygen sensor because it can significantly raise the toxicity of your vehicle’s emissions.
Dirty Air Filter
If you haven’t changed your car’s air filter for some time, it is bound to get clogged and dirty. This may lead to abnormally high levels of hydrocarbons, and make your car fail the emission test. The majority of auto-makers recommend a change of air filter once in 12 months or after covering 12,000 miles. In case you do not recall when you last had the air filter changed, it would help if you replaced it before your emission test to avoid failing.
Overdue Oil Change
Delaying changing your oil could easily lead to a failed emission test. With clean oil, there are fewer hydrocarbons and makes your engine to be cleaner. The result of this is a cleaner emission production. You can quickly deal with this cause of emission test failure since you only need to get your oil changed and ensure you do not delay it in the future.…