So, what it sounds like you are saying is that I have my work cut out for me. All that you listed I read in my manual, but was trying to get an idea on a more specific first step. But I did notice that three day's ago I was inspecting the harnness wiring that feeds the front coil pack and I checked the front coil pack connector. I softly wiggled it, and moved the harness gently around all the back to where it becomes big by the addition of more wires. I did this trying to close an opening in the wiring or disconnect a short. Since that day I haven't had the check enigne light come back on. I'm just afraid to have to open up the harness and trace being that it is inside of the factory plastic body that protects it. Any more suggestions for me before I embark on my voyage?