^ You got it wrong mate, TargetAFRDriverReq=lamfa.
First what is your CWLAMBTS set at? Is tabgm_w or TABGKRM_W is the switching point?
If you dont have cwlambts defined, just log both of these values and you will see which is used as tabgbts_w and you will find your issue likely. If not you will have to look elsewhere.
What is the default value for CWLAMBTS.2? For my HN 0001 is 1 so tabgkrm is used for bts but at other sw-s it is 0. When is the difference? Maybe when egt sensor is places it is 0 other cases 1?