writing with TL866 AM29F010B PLCC32 New beetle

[gimarras]

good morning
I can not write correctly the 2 PLLc32 an ECU BOSCH for my vw beetle. I read the original files in the united states with the ECM, changed the map, made the checksum regularly, split the file in 2 8-bit and when I go to re-write it with programmer TL866, the writing takes place regularly but the car is not starting.
I was told that the file must be cut before programming the AM29F010B but I don't know how to do it. In practice, the program would fill the empty space of the chip over the 128 kb of the map.
I think it's set on the programmer, but I have no idea of the procedure.
Who can help me?

[gimarras]

I see a few visits. I move the discussion between the beginners.

[gimarras]

Discussion closed. The problem was due to incorrect calculation of the checksum that the ECM was on a corrupted file (my fault)