Do you know that feeling, when you drive your beloved, recently cleaned and waxed car and suddenly, out of nowhere, the orange (or sometimes red) Engine Check light appears on the dashboard? Is it a feeling of a fear, mixed with a thrill and anxiety? Few seconds later, after the shock is gone, you ask yourself - where's the nearest car service, where someone could connect to your car via special interface and diagnose the problem and/or delete the error code? Then you realize... it's Sunday. You're alone on that desert, and nobody is going to help you for the next 24 hours.
But thankfully, such stories are past now. Today, for about $10 you can turn your Android phone into semi-professional car diagnosis center.