Load

Engine load

A number extrapolated from the MAF value with some minor corrections. It is used in real time to control all other values including boost and fueling.

Engine load specified

Target load based on programmed values (and throttle pedal input?). i.e. ME 7 strives for a specific MAF number at a certain RPM point.

Engine load corrected specified

Adjusted target load based upon a number of internal and external values, two externals being ambient temerature and pressure. Internals are usually due to engine wear trims.