E38 Calc Ben requires fixing?

Is there anyway to have the calc ben's for e38 calculate off lambda instead of afr?

My innovate mtx-l's can be programmed to different fuel's and different outputs. i.e lambda/afr and i have them display lambda on the guages.

However i've found that if i leave it set to petrol - 14.68afr.

because im running ethanol with say a 80% mixture the ben's are completly up the shit. i.e saying 1.38+ because the commanded goes to say 9.43 and the WB-Serial afr says it's 13.63. however lambda is correct at .913.

Attachment 15907

okay, i seemed to have worked out a solution, but it's a bit dirty.