help please code p0299
2003 a4 1.8t quattro..
magnaflow exhaust
afe cold air intake
hyperboost dv
and recently apr flash upgrade
hours after my apr upgrade my cel came on. i ran the codes and got p0299 low boost pending. after searching around on the forums it seemed i probably needed a new dv which i replaced with a hyper boost . the stock was slightly broken. reset the cel and now it is back on about half a day later. the car doesnt feel much quicker at all with the apr flash upgrade. what could it be?
is there a way to check what psi i am running at with a pocketplus scanner (i own)
and what could the problem be..
maf? n75 valve?
thanks for everything




