So I just tried this procedure this morning and I'm not sure if i was too fast, or what happened, but unplugging my drivers side harness threw codes. I noticed yesterday that right after startup, it looks like the wastegates go through a startup test if you will, they open and close a couple times. I think maybe I got the harness unplugged before this process completed. Threw a code, got the orange tool indicator. It actually took three shutdowns and starts to get it to go away, my guess is it had to complete that cycle a couple times before it would clear.
this rattle is getting worse it seems, guess its time to go in. I also have a clunking noise in my passenger front wheel well, it's audible in the passenger cabin when going over bumps real slow, i.e. in parking lots. I can even hear it if i crawl under the vehicle and push the frame up and down, but i can't find anything loose, it doesn't happen on the drivers side. Starting to get frustrated, this is by far the most expensive vehicle I've ever bought.