The inlet manifold runners do a sweep when ignition is switched on , so like you say you see the arm go up and down , in a good working condition each manifold motor does its sweep and the ecm does a signal compare between the both of them , if one of them fails the sweep test the ecm will switch that motor off line .
Biggest issue here is where the link rod attaches to the manifold arm the plastic end stops break off hence the codes .. upper limit/ lower limit not reached ....look at your code ,it's telling you just that .
There is link rod repair kits on eblag but the ones I have done always needed manifolds , the manifolds are on eblag aswell but I don't know what the quality is like ??
In the cases I have seen the manifold runners have NOT put the car in limp ...just put the management light on , depends on year and software level with limp issue
Next code ... turbo control .....
Is it vaccum control actuator or electric (hella unit)
If vaccum , with engine running take vac the pipe off the acctuator .... is there vaccum on the pipe , if yes when you put it on the acctuator can you see the vnt acctuator arm being pulled up to the stop screw.
If there is no vac on the pipe , trace the pipe back to the control solenoid , see if the control solenoid has its vaccum supply to it , systems normally have a vac resvoir somewhere which is kept under vaccum from brakes vac pump .
If the turbo control is electric , start and stop the engine whilst watching the turbo acctuator arm , it should do a self test sweep , if no sweep next tests would be wiring checks on the plug , dont want to go into that yet , just work through the procedures I have said
What year is yours by the way ?
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