I bought an 07.5 that was *modified* and tuned by previous owner years ago. I put a 52 gallon tank in it, and just want to edit the tank values in hptuners. I was able to read the ecm in vcm editor without issue, and modify the tank size and sending unit table. However, I am hesitant to upload the tune, because I dont know how it will play with the codes that HP tuners doesnt allow you to view or edit. I dont want to brick my ecm, or cause other issues. Does anyone have any guidance? I just want everything to keep working as is if possible.