So I was getting on the highway last night and put it into third going about 45 and shifted into fourth under full boost at around 60ish....wait....wait.....and no blow off valve sound. Hmmm, maybe I am going crazy. I keep driving, then need to give it some gas and sluggishly I move along with NO boost. I look at the boost gauge and it is pinned at "0". I put it in neutral, and still.....stuck at zero. No vaccuum and no boost. The car runs fine, just no turbo spool. It feels like someone took my turbo out and replaced it with a straight pipe...any ideas what this could be?

Again, no boost, no vaccuum, and the car runs fine as she sits, just no boost.

HELP

 

it mightt be a vacuum leak.
check all the hoses going into the turbo.

your turbo fell off!

aha kidding.

 

yeah i checked all the vacuum lines and everything checked out...

 

blown off vac line


How did you check that the vac lines are intact?

 

fixed

tiny little vacuum leak

thanks guys

 

AKA popped off intercooler hose lol.

 

I've done that and thought I blew my motor, but I was boost creeping to 15psi....