changed rear brake pads (50 minutes) Seafoamed, drained catch can and changed oil almost 2 hours! Got a P0300 code after, maybe left a little seafoam in there somewhere. Cleared it with the hypertech and it hasn't come back. In other news, I'm getting the rough idle after fueling again. Might be time to get another new purge valve. This one didn't last very long (maybe a year), but was super cheap (<$20). I guess you might get what you pay for.