Ok, so before the ace meet this month, I'd been noticing the dt has been getting a bit - for want of a better word - asthmatic. Doesn't seem to want to boost as hard as it has been, and ive not changed the tune at all in over a month. Now, when I got home from ace, I found it was running really well...peaking at 19-20psi,and spooling up nice and quick. Figured the long run helped blow the cobwebs out, as such.
But then last night, I'm going up the same hill I always enjoy ragging up, and the old girl barely managed 14psi at 4.5k! I don't think there would have been a lack of nice cold air, so my other thought is maybe the wastegate could be starting to fail?
I'm a self-confessed n00b when it comes to diesel turbos, but im here to learn, same as everyone else, so anyone like to offer some much appreciated advice?

I'm a self-confessed n00b when it comes to diesel turbos, but im here to learn, same as everyone else, so anyone like to offer some much appreciated advice?
![[Image: P1060836_zpsz3xgxt7q.jpg]](http://i1101.photobucket.com/albums/g427/wingnutz2/P1060836_zpsz3xgxt7q.jpg)