What if you don't get a code? I don't have that bad of a running problem, but at times a rought idle when cold, or it might take a couple cranks to fire up(happens about 3 out 10 times) I had changed plugs, boots, IAC, cleaned the TB. No codes, changed programs with my programer, changed fuel filters. I did notice that the blades on a couple of the coils had a slight greenish glaze.
2000 5.4L Exp