P0244 is basically over-boost?
As stants said, when I was mapped my target was set to 1.3bar and limit at 1.4bar. 1st, 2nd, 3rd gear were all fine but if I got high in the revs in 4th I'd get boost cut. When I monitored the boost gauge I noticed I was hitting 1.4bar. Called Duncan and told him this, he explained that I was hitting the limit which caused the cut. Within two weeks he came to my house and fixed the problem. He commented highly on the condition of my engine(Feeds ego) so rather than lower my target he increased my limit to 1.5bar. I haven't had any issues since. I can still hit 1.4bar in the higher gears but to do that I need to be doing 110mph+ [emoji12] And of course none of us do that.