It’s called FIXD – Created by a group of college kids at Georgia Tech. They invented a quick gadget that plugs into your car and links to an app that tells you in easy terms what is wrong.
No more unclear check engine lights.
FIXD translates what your car is trying to tell you into simple, understandable terms. No vague light. No confusing technical definition. Just the information that you need to know.

You can also go to Pep Boys or AutoZone and they will plug into your car for free.

Check out the link: