found cause for losing manifold pressure

[johnny]

After replacing the turbocharger, the wastegate, the controller and the entire exhaust system we found the problem, which had nothing to do with any of the items we replaced. The first problem was my first mechanic did not have a clue. I ended up going to Million Air and after only two test flights they found that the problem was with the rear pressurization system dumping bleed air out at an extreme rate. They are now working on sealing up the leaks and we should be flying any day. We tested the plane with the rear pressurization system blocked off and the manifold pressure never dropped an inch. I will keep everyone informed about the final outcome later this week or next.