Alright, so i posted about a rough idle awhile back and took a few suggestions but the issue is still there. Update: 1999 GT 3.8. Once driven to operating temps, once turned off and restarted shortly there after, it has a very rough idle. It didn't throw an engine light codes until about a week ago. Once I arrived at autozone to get the codes checked out, it went off. They went ahead and plugged it in, it was showing cylinder 2 misfire. In the last month I have replaced the plugs, wires, IAT sensor, cylinder 2 coil, fuel filter. Do you guys have any suggestions before I put a bullet through the gas tank? Thanks guys!