marelli 8f3 checksum problem

[paulolad]

Hi, I need help.
the unit is a marelli 8f3.s4
I read the unit with galletto in jtag but it does not write. When I select to write, the software closes.
ktag writes but does not correct the checksum well.
I know the mpps works fine for obd but the car is very far away, I have only the unit and I can not read with the mpps out of the car.
I need to cancel the dpf
Can anyone help me to fix the checksum of the file with dpf off
attached post the original and dpf off
thank you very much

[carmageddon]

are you sure that your problem is checksum? i think not
ktag can do checksum without any problem (tested many and many times on this ecu)

anyway try it

[paulolad]

thank you
happened to me in a fiat ducato
I wrote with ktag I put it in the car.
The engine worked but the second time it did not work.
I wrote the original again and it worked. I did with mpps and no problem. but in this case I do not have the car and I can not communicate