Well ... i replaced the 2 sensors (Camshaft/Crankshaft position sensors), but nothing changed ...

I'm wondering about the "coils" and "spark wires" ... but ... they are really more expensive than the sensors ... so i just don't know what do i do ...

I thought of a compression problem on a cylinder, but, another time, i don't know how to diagnose this kind of thing.
This i my first gasoline car (i drove only gasoil/diesel engines until now), so i don't have a lot of experience on those.


If someone has an idea for me to look for, on the next step ?


Thanks !