CEL came on yesterday after a for the most part trouble free 2 weeks of driving.
P0507 Idle air control system rpm higher then expected- rpms are about 200rpms higher than normal, but it got to a ridiculous 2k earlier, and likes to fluctuate.
p0300 Random cylinder misfire
this one caught me off guard. I hand't noticed it happen.
The first code I think could be related to a vacuum leak because I noticed Im not holding boost like previously, but its hard to tell right now because my boost gauge took a crap yesterday too. That gauge has been in maybe a month. I want my money back!