JJ01769

So tonight I was driving around when all of the sudden there was a scraping sound coming from my passenger side. I pull over and as soon as I let off the gas, the car died. I got it to crank back up but anytime I stop giving it gas, it kills off. The scraping sound is always there but as I get out of vacuum and to 0 boost, It seems to run fine. The car still pulls up to 7psi if I give it gas. Is the turbo going/gone out? I need to help on this one.