1999 GMC Jimmy runs in crank but not run position

I have 65 lb. Fuels pressure at rail pressure holds for several hours o n fuel rail guage, car will run if I squirt brake clean in vauum line for power brake booster to engine will runs for split second in crank position but not run in run or on position, already checked passlock system, with key on security lite does not blink but I went thru pass lock procedure to eliminate that. Has spark at wires and cleaned plugs (sandblast)run out of ideas and yes crank shaft sensor was replaced. Car started with a froze up lock cylinder for igtion swith (key part) replaced lock cylinder, put in proper place for rotation, one note when key in on position electrical part of ignition swith has power to all the connectors except the white one for starter for crank position, any help?