help 95 s10 blazer no start no spark

here is my story. i bought a 95 blazer with 120,000 miles had cracked head replaced heads(remans). hooked every thing up but on knock sensor motor turns no start. checked and changed, coil, crank sensor when i but motor back together i did tune up. motor had newer spider injector rad fan clutch water pump. i have a book and freinds at shops but all diagrams show differant color wires to my crank sensor. it is driving me nuts. please help. thanks for taking time to try and help

maybe the crank sensor is defective.

i replaced the crank sensor and the coil. i cant find any way to test ignition mod. i am at a total lose

i replaced the crank sensor and the coil. i cant find any way to test ignition mod. i am at a total lose
Have you ever figured out what was wrong? I am new here and searching past posts to figure out what is wrong with my 95 Blazer with a very similar no-spark problem. Everything is new; no trouble code; still no spark.
Thanks. Scott