I was driving my 94 TT hard on the accelerator today a few times, about 5 separate time from almost a dead stop. The first few runs I did everything worked the way it should. Boost gauge was reading 14psi even tough Im on stock boost, turbos worked, car was doing what a 3S should. But out of no where, when Im on the throttle, the car sputters, boost gauge drops all the way down pops back up to the top, and does that twice really fast within a second.

So I let off, originally thinking it was the Y pipe. But no. Y pipe didnt pop off. And now my gauge doesnt read anything at all when it should be at -7 and it doesnt go up to 14 anymore itll go up to about 8 then very slowly make its way to 12 then stops. And the car is acting normal, other than it seems like Im running off one turbo. Ive looked ath all the vacuum lines, and the turbo pipes and they all are where they should be.

Im not sure where to start searching, Im still new to turbos. Advise?