Update: Replaced the TFI and PIP, no help. Replaced fuel filter, no help. Changed timing from 10 to 12 to 14 and back to 10, no help.
Just ordered a new computer, 78-5611 (Cardone rebuild, A/T, non-Calif, Mass Air) from O'Reilly. Yeah, I know I'm tossing parts at it, but with no codes outside...