Ill will make this short and hopefully easy to understand so someone can help me out.
The car runs ok on stock tune but in my attempt to up the boost with a tune creates this P0299 (Underboost). So its tune related.. Im fairly sure. Once the car gets the code is drops boost to 5psi and wont run anymore boost until code is cleared. Then it runs fine for a little.
Whats in the tune?
Slightly calibrated maf
GMPP DAL table
Low WDGC (wanted to start very low boost)
Second issue is that the car isn't achieving targeted lambda's. Sometimes it doesn't have this issue.....
Data Log and Tune below: