You are pointing fingers in the wrong direction here, call your turbo guru. If you sell the smarty you will be stuck in limp mode and not be able to clear it.
There are other solutions to the P0299 code , do some research
I will agree with you Bob, the Smarty is not causing the code. It is the Turbo, but there are not any other solutions that I could find. That is why my Stock Turbo is back on for now.