need help,,1993 GMC Sierra 4x4 5.7 cut off with my wife last week and wont start,engine cranks just fine, dist. is turning,fuel pump is working no fire from coil and no fuel from injectors.I have been all over this truck testing sensors even replaced dist.cap,rotor,plugs and wires,replaced oil pressure sending unit,replaced engine coolant temp.sensor. Tested other sensors all checked good.removed and had tested ignition module (3 times) good, tested pick up coil-good.Everything checks good.Am I looking at a bad ECM? Just a side note about 2 months ago I replaced the intake manifold gasket and rebuilt TBI.Thanks for any help