Like it says, my wastegate starts to fludder past its wg spring pressure of .5 bar. I set the boost to just .55 bar through 1.1bar and it fludders at all intervals. The car feels really weak for the boost that it is seeing. I have heard of the avcr having problems, but could that be the case? i did a search and didn't find anything about it making the gate fludder. Have any of you had this happen to you with the avcr or any other boostcontrollers?

 

Maybe the stepper motor is going bad??