crank but not fire

1995 chevrolet beretta
It cranks over but she isnt getting any spark
i changed spark plugs and wires HELP

Have you checked the fuel pump.

Would imagine that your crank sensor is bad. Only other thing that would not let it fire would be ignition module. Crank sensor should be at front of motor behind balancer. not horribly expensive as a rule. ignition module is expensive and sits under your coils (where your spark plug wires start). A thin item, can be a pain to replace. All of this depends on what motor you have but all 95's have these. get a haynes manual to help you at Advance Auto.

Just some easy check: Check your fuses. Are you getting spark out of all the coil packs?