I change my wires & spare plugs the dist.cap the firing pin and a new batt and my 93 camry still won't start

There are a lot of different things that can cause this... Did you check the fuses?. Does it turn over and not crank?. etc...

Yes it turn over and won't crank I think I need a fuel pump

Change the coil.

Fuel pumps are very reliable. If you can hear the fuel pump run, when the ignition switch is turned to ON, it is likely okay. You may, however, want to change the fuel filter.