[mwebb]

calculated load is an OBD2 PID , Parameter id
it is not unique to UG or SG or any other scan tool

it is a measurement of
calculated load -

the values used to measure load include MAP , MAF , Temp , RPM , throttle position and timing , there can be others

KISS
at cruise
lower calculated load translates to
improved fuel economy

at WOT increased calculated load translates better flow and to more power
expect around 90 to 95% calculated load at WOT at 4k rpm on a NA car
WITH real time fuel trim at +/- 5% FROM ZERO FUEL TRIM ADJUSTMENT -
if not
there are problems , depends which PID does not meet what is expected .
expect 150% calculated load at WOT over 4k rpm on a boosted system , same fuel trim conditions.

you can watch load change at idle
switch AC and Hi beams on while monitoring calculated load