You need to make sure you have just two things. You need benzina and you need leccy.
First of all... fit a battery or your car won't start. Jumping it with a remote battery just to crank the engine is not the same thing as all the circuits being "armed".
Take the fuel hose off the injector and crank the engine. If petrol comes out when you crank the engine (catch it in a small container) then the fuel is getting there and the pump is okay. No fuel means it's a fuel pump problem (or pump isn't getting a signal).
You can check the injector electrics by removing the connector plug and connecting the pins to a meter (or use one of those glass bulbs with the metal tangs on the end, like they put in the number plate lights.. just fold the tangs out and stuff them in the connector block). Again, crank the engine. If you get a signal (or the bulb flashes) then the electric signal to the injector is fine. If you get this far then the problem is electrical.
Take off one of the plug leads... attach it to an old spark plug and rest it on the rocker cover (don't hold it unless you have seriously heavy rubber gloves). Crank the engine and see if the spark plug sparks. If it does, then the ignition circuit is fine.
If all of these things work, then the car *must* start... so I think you will spot a problem.
If you have no signal to the injector, no fuel and no sparks then the problem is a dead TDC sensor.. absolutely nothing else, no matter what anyone tells you.
Unless it's a dead ECU...
Ralf S.