S52 stalling and terrible idle

[brecken]

s52 OBD2 Problems:
Stalls out immediately unless throttle is held with MAF plugged in and if i mash the gas up to like 3,000 rpm or so it clears up nicely and sounds normal.
Maf unpluged barely runs but will stay running
SPECS:
- This is in a e30 but shouldn't be any different from e36 m3
- I am running the oem obd 2 FPR havent checked fuel pressure.
- Maf was bought used confirmed voltage using INPA (potentially good?)
- Replaced intake boot and IACV hose also cleaned IACV and it is humming
- will confirm 02 sensor voltage with INPA tonight
- SAP and EWS and rear 02's deleted
Thoughts:
I am assuming I am running lean with MAF connected and that's why it runs better while disconnected.
I cant find any vacuum leaks that would cause me to run lean?
anyone have any suggestions for me to test?
(I have researched the hell out of this now I am asking for the communities help, Thanks in advance)
Got INPA codes 27 and 53 for idle adjuster.
replaced IACV no change
Updated with video: how is there no misfire code it sounds terrible????
fuel pressure:47 psi with engine off and not consistent bouncing around with engine on at over 50 psi
compression (engine cold, harbor freight tester):
cyl 1,2,4,5,6: 140
cyl 3: 130

https://youtu.be/cSb0aaVTSp0

[agent]

Sounds like a vacuum leak.

[brecken]

smoke testing tonight ill be back with results

[brecken]

Definitely a vacuum leak somewhere under the manifold but I couldn't pinpoint where it is coming from

[George E30]

What a shity problem I'm dealing with it now I can't seem to figure out what's wrong with it, car runs rich, then when I open the throttle all the way it clears out the engine, it works fine for a bit then goes into a bad idle and runs horrible

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