ya that GM doc is what i tried looking at, its usless no connector pinouts, just endlesss wire diagrams- i gave up there.
still no fire, so i guess its a trip to shortsville to have a box unchecked on the tune. all i can hope is that the starter motor diag shuts off more than the injectors (i have no pop with brake clean) and grounding the pin like stated on the forums doesn't change anything so not hopeful.