No spark it turns over but wont start

If you have spark, check for fuel. If you turn the car to "on" without starting it, you should hear the fuel injector pump at least breifly.

alternator

Distributers are very common for failing in these cars, when the car wont start, pull a spark plug out leave the wire connected and place the threaded portion of the spark plug on some metal on the engine. Get a friend to turn the key, look for spark between the gap on the spark plug, if no spark, signs point to bad distributer

If there is NO spark then starting fluid cant start any thing. I would be checking the crank sensor first for the spark then the ignition coil pack.

some times it will and wont what? START? SPARK? what do you mean by turn over? do you mean stay running? cxause turning over is when the motor is spinning but not running

I would check the coil it might be a good place to start.

I would check fuel pressure so you can rule out pump. I had a bad pump right out of the box before. Also you may want to change fuel filter so you can rule out plugged filter. You have spark, sure seems like still no fuel.

do you have spark? may be the timing. if it turns and turns and wont start, take off a plug wire.(wear heavy gloves) hold it close to the plug and have someone turn the motor. If it sparks, not the timing, if it not, timing belt is gone

Hate to do this hard way but assuming you have no test equip. Pull the starter and have the Auto Parts Store check it out on the bench tester for free.

you don't say if it wants to start, if it tries, if it does, maybe an issue with exhaust gas reculation system stuck open. OR dirty or clogged fuel nozzels.