P1141,Load Calculation Cross Check Range/Performance
P1347,"Bank2,Crankshaft-/Camshaft os.Sens.Sign. Out of Sequence"
P1522,"Intake Camshaft Contr.,Bank2 Malfunction

maybe someone knows what these codes mean I cant really understand what i should fix or change

 

valve timing is out, timing belt slipped a cog

 

your lucky you have these codes because the next step is the timing belt stripping totally or breaking, get it sorted asap

 

It could also be a faulty camshaft adjuster.