Can My Car Pass Emissions with Check Engine Light On?
The answer to this question is: maybe.
It depends on the reason why the check engine light is on. Some emissions tests only check for certain pollutants, such as hydrocarbons (HC), carbon monoxide (CO), and nitrogen oxides (NOx). If the check engine light is on due to a problem that does not affect these pollutants, then your car may still be able to pass the emissions test.
However, if the check engine light is on due to a problem that does affect these pollutants, then your car will likely fail the emissions test. For example, if the check engine light is on due to a problem with the catalytic converter, then your car will likely fail the emissions test because the catalytic converter is responsible for reducing HC, CO, and NOx emissions.
What should I do if my check engine light is on?
If your check engine light is on, the first thing you should do is have the code read by a mechanic. The code will tell you what the problem is and whether or not it will affect your car’s ability to pass the emissions test.
If the problem is minor, such as a loose gas cap, then you may be able to fix it yourself. However, if the problem is more serious, such as a problem with the catalytic converter, then you will need to take your car to a mechanic to have it repaired.
How can I prevent my car from failing the emissions test?
The best way to prevent your car from failing the emissions test is to keep it well-maintained. This includes:
- Getting regular oil changes
- Replacing the air filter regularly
- Checking the tire pressure regularly
- Getting the spark plugs replaced regularly
- Having the catalytic converter checked regularly
By following these tips, you can help keep your car running smoothly and reduce the chances of it failing the emissions test.
