Target on that map should be 11.8:1 at WOT. Mine was doing the same thing with the leh fuel pressure regulator, if you are using the vxr rail and injectors you need to swap the fuel pressure regulator to the let one.
Let =3.3 bar
leh =3 bar.
Eds have a different map to suit the leh fpr it is the +20% fuel map if you have it and don't want to swap the fpr.
Also you should check the long term trim, I know with mine it can go rich and cut the fueling giving me similar AFR's my solution was resetting them every time I fill the petrol tank till I can get a custom tune done.
Sent from my Nexus 5 using Tapatalk