05 @145,000- Came into the old idle misfire with no code. Performed the normal Throttle Body cleaning like I’ve done in the past for the issue. No avail. Cleaned the MAF as well. Since I am5k from spark plug change, replaced them with the AC Delcos. Feels somewhat more responsive (peppier). But after a bit of driving and idle stops to complete all conditions to prove a fix- misfire reappeared. Same as before, at idle, no codes. Now SOMETIMES at take off a slight stumble. Still, no codes. Anyone else experiencing this and what turned out the fix? I hate to replace all coils or even one if I don’t have something more concrete.