I recognize that microcontroller package but it's from waaaaaay before my time (in the realm of ucs).

I think before I jump to any more conclusions I'd like to see a scope capture of the following signals.

EST
LowRes Opti
Inductive clamp on #1 spark
#8 Injector (or #4 or whichever gives best waveform capture for kur4o's request)

Both at idle and holding at say, 4000rpm.

If that's not something you can do any time soon vilefly, I'll look into doing it. I wouldn't mind owning one of the little capture devices you posted, even though my toy fund is currently deep in the red.