No spark, no fuel in engine, no start.

Aloha! I need your help!

I am driwing(I WAS driwing) Skoda Octavia 1.4 classic from 2002, and everything went quite good until that started to shut off during driving. Sometimes often, sometimes worked really good. It showed 2 alarms on diagnostic-Lambda sond 2 bord 1 and sensor in engine speed sensor. He changed both of them, and from that moment my Skoda died. :( It doesn't spark, it doesn't give fuel in motor(it has fuel in front of engine, but i don't know is there enough pressure, but it looks quite much). 

So-is there any connection in between "no spark" and "no fuel in engine"? Kan that be one relay, or something like that. It cranks but won't start.

I don't even have any schema with relays on it. Help me!