After finding out why my engine kept over heating (Head gasket) we reinstalled everything and turned on the car. The car turned on fine but sounded like it was misfiring. We checked everything that could make it misfire but my friend noticed that the serpentine belt was loose, which it was (tensioner wasnt doing its job). We adjusted the serpentine belt and started the car again. However this time it did not start, it would only crank and the engine will turn over but not start. All coils, injectors and spark plugs are working. I even tried a different set of spark plugs. The car basically has fuel and ignition but will not start. All electronics connected to the throttle body are working as well as the maf sensor, crank sensor and cam sensor are fine. We also tried pushing the car, disconnecting the battery, replacing the battery, changing the tune but nothing would start the car. It would only crank and turn over.