How to fix a check engine light in a Ford Focus

I have a 2012 Ford Focus and the check engine light just turned on. Is this something I can fix myself or do I need to take it to a mechanic? Any advice would be appreciated!

It's always best to take your car to a mechanic when the check engine light comes on. They have the tools and knowledge to properly diagnose and fix any issues.

You can try checking your gas cap to make sure it's on tight. This can sometimes cause the check engine light to come on. If that doesn't work, your best bet is to take it to a mechanic.

I had the same issue with my Ford Focus and it turned out to be a faulty o2 sensor. Definitely take it to a mechanic, it's not something you can fix yourself.