I thought it was over but I guess not. Yep, today my engine started sputtering and coughing and throwing the hold light and the check engine light into a dancing array on my dash. Again codes for misfires, so I got to wonder what I am missing. I did plugs, check, wires, check, coil pack, check, air filer housing and hose, check and check.... So now what, what other item am I missing? Do you think it might be the O2 Sensor???, Burned Valves????? Midlife crisis???