1989 Mitsubishi Galant Car won't start

Engine Performance problem
1989 Mitsubishi Galant 4 cyl Front Wheel Drive

Can't figure out why my car won't start. I replaced the alternator because it wasn't giving out enough charge and drained the battery. I've also had the starter tested and put new plugs, wires, coil and distributor cap on in the last few months. It's getting spark and I can hear the fuel going into the throttle body but all the engine does is rotate. I've been told to check the MAP sensor but now I hear I don't have one on this car(?) I've also cleaned the EGR valve and Mass Air Flow and neither of these helped a bit. Trying not to get taken by a mechanic cause I have no idea what it could be. Anyone have any ideas?