Hello guys! I got a bmw e46 compact 320d 150hp manual with a tune on it.
With the stock tune or with the tune the car has the same symptoms.


If i let my car turned off for some hours or over night when i go drive it in the beginning i can go full throttle and car makes 0 boost.
I have to hit the throttle a lot of times , like 10 times, to make the car make boost.
And after the car is back on boost sometimes it doesn't make enough boost and makes a wierd noise.
And sometimes it makes a lot of boost! Wayyy more. The ecu doesn't request that amount of boost but it makes 0.5bars more. Isn't it supposed when it overboost to cut the boost?


I have an error : 4191 DDE: Charge-Air Pressure Actuator , Activation


Is it the actuator sticky / corroded or it can be the geometry inside the turbo?