Did a tune up and replaced the spark plugs with NGK Iridium, drove about 100 miles and it was good, shut car off, when I started it again it felt like it was running on 5 cylinders. So, autozone pulled a code P0306. I then replaced the back drivers side coil pack (#6), cleared the code/reset ECU. It's doing the exact same thing and not sure what to do.
What should I do next?
Thank you!
What should I do next?
Thank you!