Need Help on 94 camero

I have a 1994 3.4l v6 camero an I'm having a start
but no crank problem any info would be greatly
appreciated...so onto the problem
When we try to crank it it turns over but will not
crank the RPM gauge does nothing at all it sets at
zero an does nothing else.its getting plenty of fuel
but it's getting no spark we had the ignition Control
module tested an it passed the an we bought new
coils an new plug wires an still getting no spark we
changed the 24xsignal crankshaft position sensor
one of them anyway an still no crank we are
planning on changing the other 3x signal
crankshaft sensor tomorrow the if it isn't that we
are out of ideas can anybody give some advice on
what else it could be???