Read all posts and surfed the internet for some help. Posted in an old thread but wanted to get visibility here. As the title stated driving home got the CEL and ESS lights. Car running rough. Swapped #4 and #6 coil pacs and wires. Puta. Ew plug in number six. P0306 code cleared but came back after a bit at above idle RPM. I have seen other post but no resolution. Hoping there is a fix out there somewhere. Thanks in advance for any insight