RomRaider

Not directly but what I did was basically send the same commands that RomRaider sends over CAN based on your code here. That sequence is similar to what UpRev supposedly sends. I have an ESP32 board connected to the CANH/CANL lines and I send it CAN commands over HTTP.

Most of the commands don't work on my ECU as the PIDs are different. For example the cmd "22 1103" (BattVDC query according to code comment), NCD Ident query "21 10" or the supported PID queries don't work on this ECU (K9K diesel engine). It also has no diagnostic session 0xfb, but 0xc0 seems to be good enough. When it gets to actually reading the memory using service 0x23 I get errors. Either the syntax is different or SID 23 has been disabled.

Some thread on this forum mentioned reading memory by defining new LIDs using service 0xAC and then requesting those LIDs values, I wonder if something like that would work.

Since this is a diesel ECU it is most likely very different from the petrol ECUs. We see this with other manufactures too.
You should start your own topic on this to keep this one focused on its main subject.

AC is for k-line comms, it doesn't work on CAN.

Hi, I'm trying to dump my ROM using UDS 0x23 as described in this thread, but every access/address just returns negative 7f 12 (sub function not supported or invalid format)
I am in diagnostic session 0xFB and that succeeded.

The car is s 2010 370Z 6MT, 23710-1EJ2A (1A37D maybe?), and has an EcuTek tune (I want to back up the tune before I go back to stock to comply with california's new rules)

How likely is it that EcuTek just locked down service 23 on their ROM? I think I'm doing everything the same as the CAN logs posted here, and everything else seems to work OK (ie I can read service 21 and 22)

Would appreciate any tips to point me in the right direction, or if it's known that 0x23 can't dump this tune. If I don't make any progress in a week or so, I'll just bring it back to stock and see if I can dump that with my program. Thanks!

swapped to backup stock ECU and my code works fine now
are there any known defs for these?

2010 370Z 6MT 1EW8A