Before splurging on a new IAC I wanted to take it out again and make sure it's clean, I also saw this thread about lubricating it which I will try.
https://www.e46fanatics.com/threads/...n-icv.1043323/
Throttle body looks really clean.
I pulled the spark plugs because one of the other threads mentioned excess carbon buildup causing similar problems. This looks a bit excessive to me but curious to get thoughts. All cylinders look about the same. I'm considering adding some cleaner (such as throttle body cleaner) directly into the cylinders to try and get some of the crap out.