pul out your CAS and turn your ignition to on and spin the CAS do you hear your injectors ticking??? if not then your ECU or power to your injectors are f'ed

If they click meaning they operate fine, then pull out a spark plug (after you've put your cas back in and having the spark plug still conected to the coil pack earth out the bottom of the plug to the engine body or head (anywhere that is metal) and tun over the engine see a spark???

basically one of those tests will tell you whats failing spark or fuel or both.

Then you can go off and check voltages on your ingition wire to the ECU etc,

have you checked your ignition relay??? is it still working or has come loose??? check you fuses in your fuse box haven't come loose in trasit.