Can My Car Pass Smog with Check Engine Light On?
The answer to this question depends on a few factors, including the state in which you live and the specific reason for the check engine light being on.
State Regulations
In most states, a check engine light will not automatically fail a smog test. However, there are some exceptions. For example, in California, a check engine light that is on for any reason will result in a failed smog test.
To find out the specific regulations in your state, you can contact your local Department of Motor Vehicles (DMV).
Reason for Check Engine Light
The reason for the check engine light being on will also affect whether or not your car will pass a smog test. Some reasons for a check engine light, such as a loose gas cap, will not affect your car’s emissions and will not cause it to fail a smog test.
However, other reasons for a check engine light, such as a problem with the catalytic converter, can cause your car to emit excessive pollutants and will result in a failed smog test.
What to Do if Your Check Engine Light Is On
If your check engine light is on, the best thing to do is to have it diagnosed by a qualified mechanic. The mechanic will be able to determine the cause of the problem and recommend the necessary repairs.
Once the repairs have been made, you can have your car smog tested again. If the repairs were successful, your car should pass the smog test and the check engine light should turn off.
Conclusion
Whether or not your car can pass a smog test with a check engine light on depends on a few factors, including the state in which you live and the specific reason for the check engine light being on. In most cases, a check engine light will not automatically fail a smog test, but it is always best to have the problem diagnosed and repaired before taking your car for a smog test.
