It seems to be a code for supercharger boost performance A. My car is a 2014 V8s. My guess is a fault relating to boost controller, not familiar how and what controls boost on this engine. Thanks in advance to anyone who can point me in a direction to start looking.

 

Doesn’t make any sense. That code is usually specific to a malfunctioning turbo actuator. Not applicable to an SC (shaft always in motion) unless it’s somehow related to the bypass valve.
Bad MAP sensor maybe?

 

Apparently there is a TSB about this. It’s the equivalent of a blow off valve that needs adjusted or replaced. They adjust until adjustments won’t work than it’s a new supercharger. I guess not a dealer replaceable part.