So I have been having a lot of problems with my TGP since I got it. We have fixed all the problems except for the boost, and that is what I want to be fixed the most. When we got it it overboosted and now it doesn't get any boost (or at least not very much if it does get some). So I have replaced the Boost Control Selenoid and had the Turbo rebuilt (which includes rebuilding the wastegate actuator so it is good also), and no, I probably didn't need the turbo rebuilt but it was pretty worn once I got it out of the car and actually looked at it closely. I also cleaned out the vacuum lines that run to the turbo so they are like new, and I cleaned out the air intake before and after the turbo except for the intercooler because I am too lazy to pull it off to clean it. So basically the only problem that I think could be the problem is either the intercooler is clogged or there is something bad in the exhaust. (like the cat is plugged) So, can anyone here think of anything else that would make the car not make any boost or at least not a significant amount. (if it gets boost right now it gets MAYBE 1.5psi) I am going to unbolt the exhaust before the cat to see if it is an exhaust restriction, but I need to know if I will need a gasket for that or can I do it without a gasket first. As soon as I know that I will rip it right off. If it isn't the exhaust and it isn't the intercooler I really have no clue what it could be, so if there is anything else that could be causing the problem let me know because I really want this problem solved ASAP.
Thanks, and I hope you guys can help,