Tried looking for a leak multiple times with a smoke machine, no luck. Might look into UV dye and see if maybe my eyes are just not good enough.

Haven't done anything since the holidays/freezing cold hit, except finally get something to log the fuel trims.

Dropbox link for anybody that cares to take a look. Bank 1 stuck in open loop it seems.

https://www.dropbox.com/s/x793oob08z...12018.xls?dl=0