Thanks for the answer,
The knocking sound is from the intake manifold, when I place my hand on it I can feel something hitting in there, but I inspected it and everything seemed fine, just 2 out of 4 seals were fallen in the intake itself near the valves, I put everything in it's place with a lot of gasket silicone, but that didin't change a thing.
I didin't change the big-end shells, now I think I made a mistake that I didin't do that, but I feel that the shells aren't the problem here.
Should I change the intake manifold? And what could be the problem with the throttle? It doens't respond as it should , I get a fault throttle/pedal position sensor/switch "B, is it the pedal or the throttle body?