[casper1986]

hi i order kess and read volvo v50 2,0d ecu via obd  and size is 2048 kb
and bmw e39 530d  file size 512kb 

1. Why one is 2048kg and second 512kb


2. i try  delete egr/dpf/dtc volvo sid803 
software : Ecu safe, DPF Remover 2017.05, MTX DTC Remover

nothing happend what i do wrong

[tpetrov]

I apologize in advance!!!
I think it is wrong this what you are trying to do with the knowledge you have!
if you think that with a few free downloadable programs you will be able to deal seriously I think you are in a big mistake.
P.S. it's a whole science and it's not a "spoon for every month"
I hope I've been helpful