Nissan Patrol 4x4 (Africa)

Ok, so I bought a new boost sensor (the one that sits on the intercooler), and popped it in last night, only to notice a fair amount of chafing in the areas that make contact with sharp objects and, with the vibrations eventually cut through the pipe. So I popped in to my closest "stealer" and got over a metre of vacuum pipe and I replaced all the obvious pipes leading to the turbo's VNT and the boost valve etc. On further investigation, I have noticed a few more similar pipes running under the intercooler, and there are some really bad looking nics in these as well.
My question is this - are all these pipes vacuum pipes, and do they all control / affect the boosting function and if so, is it possible that the strange boost pattern I am experiencing might be linked to a "leaking" pipe in this area.

Iam no expert on the pipes you refering to but they either need to suck or blow other wise the will not be there
Fix them and lets see