HOW TO: 1988 Buick GN---turbo set up?

[Chevimp58]

looking for the location of the hoses on the Garrett Turbo. The boost gauge is not functional--was worked on for other issues and the hose replacement didn't get done correctly. can't find a diagram for the hoses for the boost gauge, waste gate and controller. thank you
Alan from Florida

 

[TireFryer]

Factory gauge usually doesn’t work. It’s electronic and needs to be rebuilt. You can tie into the map sensor line and run a mechanical boost gauge. That’s what most of us do. As to he stock plumbing, someone here has pictures of the wastegate lines and routing, I’m sure they’ll chime in