2002 blazer 4.3 extreme
drove it home a couple weeks ago before christmas and went out the next morning, it wouldnt start.

i have spark out of coil, spark out of cap and rotor, and at plugs,

power and signal and ground out of crank pos. sensor though it has thrown code previously, checked connectors inside,

when hand cranked from balancer goes from setting to excited from the sensor,

bypassed starter for check,

will not start with starter fluid,

fuel pressure at 62 lbs.

fuel injectors are pulsing ie. hot on the pink wire, grounding on the pcm signal.

swapping crank pos signal with one sitting in the shop no change and put the original back in.

there is no codes showing.

any help or ideas would be greatly appreciated the only thing i can think of that i haven't done yet is to pull the cap and have some one to turn the crank to check timing. does anyone else have any idea's?