Checksum correction New Beetle BOSCH PLCC32 and opinion map

[gimarras]

hi guys:
I have read the chip in the ECU BOSCH a New Beetle 99 with the programmer TL866 . I made a map with increments and fix the warm start by copying the first part of the map, starting above the second. Can you give me an opinion on the map overall, and calcolarmi or tell me how to calculate the Checksum in these caasi, because the ECM does not calculate it?

I enclose a zip file with Ori and Mod.

thanks