so i completely new to this whole VW / turbo thing ... i just recently got the car its a 2002 GTi AWP engine the car has a FMIC and blow off valve, it ran great when i first got it was pushing 18-20 lbs of boost max and 14-16 normally. After driving the car for maybe 200 miles the car blew the hose between the turbo out pipe? and that aluminum chamber that looks like its there to just avoid the pulleys on the motor (is there a name for that hose?) when it did that it pushed 0 boost all the time. but i got the hose fixed with a new silicon hose wrapped in Kevlar but its now only pushing max to 6lbs? the car will also surge or jerk almost at 3k-5k unless you take it easy and slowly get into those rpms? i was thinking MAF? but i dont know if that would fix the boost problem. any help will be appreciated.