broke this question away from the "another stall issue" thread since it was a quick and dirty.. I see the scale is reversed for vacuum from what I"m used to .. 30" was perfect vac.. with this 0" must be perfect vac, since it'* at 29.9" with key on no start.
Still following the path that leads to PCM replacement..
So far have eliminated (by swapping or replacing):
ICM, plugs, wires, crank sensor, cam sensor, coils,MAF,IAC,TPS,EGR.
about the only things left are O2 and pcm.. and since it happens on startup (cranks, fires up immediately, then quickly dies) the O2 shouldn't be in the loop yet. Was going down the contaminated gas route for a while there, but that seems remote, especially with all the ethanol in todays fuel, shouldn't have a water issue.
only have a couple hundred in it so far, about what I would expect to pay for a good class on electronic control systems for the 3.8 engine