Sr20 Lean in boost/idle problem

[Jasonx63]

Ive searched the forum and done the recommended things with no luck.

a couple days ago i started my car and the idle was jumpy i mean it'd idle at 1.1k solid then drop and my boost gauge would read like i had a leak 10-14inhg so i did a boost leak test and found some small ones and fixed them. the problem remains. ive also adjusted the TPS to perfect voltage readings check plugs fuel pressure changed o2 and i have split fire coilpacks so im sure those are fine. when it idles at 1100rpms afrs are good and vacuum reads good then when it drops to 800ish goes lean 17ish for a couple seconds(only does this when cold) and goes back up fine. when im crusing afrs are perfect 14.1-14.9 it richens when i accelerate and even when i floor the car UNTIL it reaches full boost. ive tried everything i can think of any advice would help,Thanks.

s13 blacktop 740cc inj,225walbro, z32maf,z32 fuel filter,bkr7e gapped at .028, nismo fpr with fuel pressire reading 45.0 also have used my aeromotive fpr with no difference made.

TLTR
- idles a little jumpy boost gauge occasionally reads as if i had a leak when ive tested for one several times and isnt any.
-Afrs while cruising are 14.0-14.9
-afrs in full boost are really really lean