Great write up! I am the author of the TP2.0 page you linked to. I went through a very similar process to you, ended up disassembling the code for a Siemens PPD

Great write up! I am the author of the TP2.0 page you linked to. I went through a very similar process to you, ended up disassembling the code for a Siemens PPD ECU (PowerPC architecture from memory, it was about 10 years ago) so I could turn of the DPF regeneration functionality.