2006 Ford Mustang emission light came on should I go to autozone for a reading
It wouldn't hurt, then you can post the results and someone can help you identify whats wrong.
Getting the code read is the first step towards fixing the problem.
Definitely, but first, check to see if your gas cap is loose or missing.
Looking for a Used Mustang in your area?
CarGurus has 45,845 nationwide Mustang listings starting at $1,999.
Search Ford Mustang Questions
Ford Mustang Experts