a friend of mine has been always complaining noticeable power lack and hesitation,,
20% of the time, the car runs like a beast with max power before it lacks again for the rest of the ride,,
the local dealer has already replaced the fuel bump and related stuff; they declared this a "boost pressure control 2191" issue and advised him to carry out a funny procedure whenever this happens again:

- WOT 3 times between 1500-5000 rpm
- do it in only on 3rd gear
- then, run in steady speed for a while

anyone has been through this before?

thanks,

KJ

 

I think he has a sensor going out that works the vario cam there are two one on each bank and not that costly.