My car turns over but won't start what could be wrong?

There’s a multitude of possibilities! It’s not beneficial at all to post a list of the possibilities as *hands-on* testing by qualified personnel will be required for each.. Any actual diy repair suggestions are only guesses and will only add to the confusion. Your best option is enlisting assistance from a professional at your local auto repair facility to conduct the required *hands-on* testing so a proven repair solution can be obtained. Good luck!