Car will not boost hits 0 and that's it? Waste gate fucked?

 

Lil more info about the car & what exactly it's doing can help with someone answering your question.

If I understand your profile right, you have a turbocharged LSJ?

First Id check for a break in the charge piping (pipes seperate?) While driving do you step on the throttle and hear the turbo spin and no boost build up? If this is the case, stop driving it immedately and fine where the air is escaping, because you can over-spin & damage your turbo, as it sees no restriction.

Other than that it would help if you gave a bit more of a description but this is my initial assumption.

 

yeah, check your piping. i used to pop mine off all the time until i got better clamps. especially the one connected to the manifold and the one on the turbo itself...