1997 Jetta Won't Start... Pls help!!!

I have a 97’ VW Jetta GLS 2.0 that suddenly turns off running and don’t start again. The engine rotate, the fuel pump is working, the ignition sparks, I drop like a cup of gasoline directly to the intake and it don’t start neither. Any help about this matter will be highly appreciate. I'm running out of Ideas:banghead::banghead::banghead:

Get a can of 2+2 and spray in throttle body

I also have almost a similar problem but the problem with mine is that it is a 1.8 ,CSX 1997 model.when I do actually key in and start it does crank but does not kick in.Only when l go to the positive terminal on the starter it self and touch it to the ground terminal does it start.i seriously don't know what the problem is please help.