2015 Kia Sorento. Car was suddenly running rough. I had a notification on my app to replace the ignition coil for my fourth spark plug. I did. Still running rough, and the app said to replace the 4th spark plug. I replaced all 4 spark plugs and it is still running rough. The app says to replace the fourth spark plug and ignition coil. Any suggestions? The car has been awesome up to this point. Short in a wire maybe? Someone else I know is having the same issue. Thanks ahead of time.
