did you check and see if the coil is getting power? if it is have you pulled out the dist. and messed with it befor this problem? the dist. is pretty simple in nature for a s14 it has a internal coil and pickup wheel and a sensor for the wheel, did you wash the engine bay out at any time? do you have another dist. to change it out with to truble shoot it with? its not to offten the sensor takes a dump but it can happen, there have only been a handful of times Iv had to change one out for people but once in a while...also is your ignitor in good working order?
these are a few basic things to check so let us know!