You need to post more info.... is it a 2011 Pro or a 2010 or earlier model? When did it start happening? Who did the install? Are you running a AFR gauge? It is highly unlikely that your boost controller is "blown". If it is a Pro kit, you are running the V3.5 Dobeck controller. If you have checked for all leaks and have none, check your boost reference line and make sure it doesn't have any moisture or debris clogging the line. If you have done these things and the AFR goes lean when boost comes on it means you more than likely have a bad pressure sensor in your V3.5 box due to having moisture in your reference line at some point. You will need to send in your box and have it repaired.
It's fairly obvious to me that you have a very limited knowledge of two stroke turbo kits, how they work, and how to tune them. From your previous bashing of Justin and his kit, I take it you are finding this out the hard way. I am in no way an expert and am a novice at this whole thing myself, but I sure as heck wouldn't blame someone else for my lack of experience. The good news is you are gaining experience in spades right now. Good luck with your kit!