The solutions from the tuner are
i remove the limp mode software, could break something
ii increase to boost cut off limit, again could break something,
iii lengthen the wast gate rod.
I lengthened the waste gate rod, I still get the grunt with out the limp.
As I had to remove the plumbing to the Provent, that I installed, to easily access the waste gate nuts, I think I am slowly going down the path of mutating into an automotive engineer.
