This was taken from here:
http://turbo-moteurs.cnam.fr/publications/pdf/

It's in french but if you have some basic knowledge and speak a latin language it's a piece of cake.
It has many illustrations and some are in english.

Enjoy ;)

PS.
This document helped me understand diesel injectors' timing.
Now I know for sure that values in Injection Duration maps are microseconds.
If you want milliseconds you'll have to put in factor = 0,001 and precision = 3