No way to do it without Tech Stream. I spent a substantial amount of time getting Tech stream to work on my 10-year-old PC. Also had to get the correct OBD scanner. Configuring those two together to then work with ECU was a bit of a hassle. I would probably take it to someone with TS to do it. Less headache. Unless you plan on using TS for future use.I did not. I had the battery unhooked for almost a week. I’ve deleted all the codes dozens of times. I do not have access to tech stream. Is there a way to do it without?