What causes the check engine light to turn on in a Kia Rio?

I recently purchased a Kia Rio and the check engine light has turned on. I'm not sure what could be causing it. Any ideas?

It's important to first have the error code read by a mechanic to determine the specific issue. It could be something as simple as a loose gas cap or a more serious problem.

One common cause of the check engine light turning on in a Kia Rio is an issue with the oxygen sensor. This can affect the car's fuel efficiency and performance. It's best to have it checked and repaired by a professional.

I've had this issue before with my Kia Rio and it turned out to be a faulty catalytic converter. It's important to get this fixed as soon as possible to avoid further damage to the car's engine.

Another possible cause for the check engine light turning on in a Kia Rio is a problem with the ignition system. This can affect the car's starting and running. It's best to have a mechanic inspect and replace any necessary components.