Hello, did anybody spotted any differences?

Have older ME7.5 car, to work ME7logger i must switch off dash (if i switch it on after logger starts, its crash again). So im logging without speed signal.  Read in some thread here, that on low gears(1-2 probably) boostcontrol works in dynamic mode all the time. Without signal assuming =  0kmh(G28 sensor error) = ecu thinks still neutral gear, there will be some difference on boost control on low gears. Or im wrong?