RB26dett Not Idling upon first start

[isixphill]

Hey everyone! just hoping this knowledgable zilvia community could help shed some light on a recent issue i'm having with my freshly swapped RB26 240sx s13.

Background:
Totally stock RB26dett (R32)
1991 s13 hatch LE Non-abs
Wiringspecialties full harness (Friggin amazing btw!)
Apexi PFC w/Boost control Kit (Tuned by Doug atUpGarage on previous car (R32GTR))

Everyone loves Videos right?:
https://www.youtube.com/watch?v=6_0vS83_XAQ


if you dont feel like reading just watch the video haha.


The issue:
when trying to start the motor it will not idle and doesn't really struggle to turn off right after starting. The RPM's seem to jump up to ~3k when the key is initially turned. However, after reaching that they just fall right down and the engine stalls. There doesn't seem to be any resistance or "Fighting" happening when the RPMS drop, it just dies. i believe there arent any vacuum leaks which are causing this (At least significant enough anyway). but yea if you have any ideas pleas let me know!

thanks!