Ok,did the same happend?
What did it cost?
I try to get slow on the gas and slowly push it up and up, the my 2nd turbo kick ind every timre, also sometimes at at 4500rpm...
I try to add a boost meter at the same vaccum hourse as IACV and EGCV. When turbo boost its only got up to 0.01 but when it happens turbo2 kicks in it goes up to 0.5 bar.
I also try to disconnect IACV. Then the boost at turbo1 holds a 0.4bar and the 2nd never kicks in.
But turbo 2 never every kick in at 1st gear (auto)
Also try to remove vaccum horse from DV and block it, but it do anything.