VW Golf 7 turbo underboost problem LIMP P029900 

Tengo este mismo codigo en un Superb,la valvula parece trabajar en buen estado,podria estar dañada de igual manera?

2.0tdi E288 when the car is warmed up and when accelerating in 3rd gear mostly i get an P00299. when the car is shut down for a few minutes the error resets on its own.this error is intermittent. sometimes i can drive for a long time before it happens and sometimes it happens after 20 min of driving. i changed underboost regulator and the other thingy that regulates it also changed one way valve on the vacum hose. today im going to try and see if i can find something what might be causing it.

I also have this error only when it's very hot outside. I checked the valve with a vacuum pump and it holds the vacuum. Was your valve still closing?

how do you know that that was the problem and not n75??

"Here is problem" absolutely fn useless

bei mir PO299 ladedruckregelung regelgrenze unterschritten. Was könnte das sein??? 170000km notlauf nur bei leichten steigerung auf der Autobahn 120-140 tempo. Innenstadt kann mann 200km/h fahren alles top. Bitte um eine Antwort