egr delete not a real tell tale for being mapped.
with your multiscan you can log some 4th gear data and pretty quickly tell if mapped from results, or actually not that easy (see below.)
do a 2000rpm to 4000rpm pull full throttle and log revs , total fuel mm3 , desired boost, actual boost.
then another with , revs , actual boost , actual maf mg/I , vnt %
for starters if its requesting anything more than 2380mbar boost, it might be mapped
if its delivering much more than 77mm3 total fuel it might be mapped
of course could be a non ideal map which is similar to tuning box with injector calibration map adjusted , harder to find or prove as values will be higher than what ecu thinks they are
example ecu thinks its delivering 77mm3(and mes will report it as 77mm3) but calibration map adjusted so actually delivering say 85mm3.
maybe uncontrollable boost where vnt drops to 20% could suggest something like this(or could be sticky vnt)
only way to be sure is to for map be read off ecu(not with multiscan)