How to troubleshoot engine misfires in a Kia Rio?

I recently noticed my Kia Rio experiencing engine misfires, causing a rough idle and decreased performance. What could be causing this issue and how can I fix it?

One possible cause of engine misfires in a Kia Rio is a faulty ignition coil. To fix this, you can try replacing the ignition coil. Another possible cause could be clogged fuel injectors, which can be cleaned with a fuel injector cleaner.

Low fuel pressure can also result in engine misfires. To solve this, check the fuel filter and pump to ensure they are functioning properly. Another common cause is a faulty spark plug, so it's recommended to replace all spark plugs at the same time.

In some cases, engine misfires can be caused by a vacuum leak. Check all hose connections and replace any damaged hoses. It's also important to regularly maintain your Kia Rio by following the recommended service schedule.