How is the fuel pressure at the CP-3 and the rail? Low fuel pressure causes the ECU to recalc and stretch things out to compensate which may lead to other codes.
Those numbers just don't look bad, roughly 5 lbs of boost at cruise. Maybe a little low as I think I run 7-8 lbs. It is relative to other things so hard to tell. It is possibly an indication the turbo is on its way out, or, maybe an ECU issue.
I hate to say it but buy a Smarty and the problem will likely disappear.