MAF v SD

[Dale Ulan]

> Lastly, the SD map between speed/load and fuel output doesn't just reflect
> volumetric efficiency.  It also reflects desired air fuel ratio which is
> also a function of speed and load position.  When I drive down the highway
...

A lot of production applications actually separate the A:F 
requirements and mixture requirements into separate tables.
This allows more creative compensation algorithms, and also
more theoretically correct.
This allows proper compensations to be made for manifold effects
and other such problems. Such compensations usually require
volumetric efficiency as a separate entity.

-Dale