Matching You with a Pre-Screened Smog Check Center You will Love
Free Online Smog Check Diagnosis
$500 Free Consumer Repair Assistance
Failed Emissions Test
How to Pass the Test
Who Else Wants To Pass the Smog Check
Which Type Should I Choose?
    Forum > General Smog Check > Question

Join the community and post your questions. Ask-A-Tech right now!

General Smog Check

1997 Buick Regal High Miles and Check Engine Light On

Would it be best to do the oil change before taking it to have the smog test done? My Buick's check engine light is on also. I'm hoping the oil change will turn off the light.


Do not get a smog check with the check engine light on. Your Buick Regal will not pass the test. The check engine light being ON is an automatic smog failure. Changing the oil will not turn off the light.

NOTE: A smog check technician is NOT required to refuse inspecting your Buick if he/she notices the check engine light is illuminated. You must have the check engine light diagnosed by a smog check repair station. They will retrieve the trouble codes which are stored in the ECU, which will lead them to repair the fault(s). Once the trouble codes are retrieved, fault(s) repaired and check engine light reset, your Regal will need to be driven approximately 200 miles in order to complete its Emissions Monitors; it will then be ready for a smog check.

posted by SmogTips Support 12-16-2016 09:30 AM
Get Your DMV Registration Sticker Quicker!
Covid 19 Impact - Option for DMV service without delay.
NeedTags - OL #89953. California authorized online vehicle registration service provider.

Related Buick Regal questions and answers you might find useful:

1997 Buick Regal High Miles and Check Engine Light On by Tami on 12-15-2016 10:07 AM

Why did my 1987 Buick Regal Fail for High NOx? by Robert on 06-10-2013 03:30 PM

1998 Buick Regal with Service Vehicle Light on, not the "service engine" light. by Logan on 06-23-2011 06:51 PM