I just got done getting my 2g gsx ready for inspection, Replaced o2 sensors, did new hard IC pipe, fixed an exhaust leak and rebuilt the 14b on the car, Nothing else has changed with it and only had bolt ons right now. I drove it 200ish miles after all of this was done with no issues, now when I start the car for the first time in the morning it stumbles at idle dropping to as low as 200rpm and is running super lean on the wideband so lean it just shows ---. Once I put it in gear and drive just enough to get it in to 2nd its fine and goes away for the rest of the day and runs great. I have done a Boost leak test and thats good and it wont even throw a check engine light, turbo is still great.

I just cant seem to figure it out and its just getting super annoying. I do have a basic scan tool I can pull some info from if any of it will help. Any advice or thoughts are wlcome ill try anything at this point. Car has just over 100k on it.

Thanks