Update: Dieing in neutral / decel RESOLVED!
It was definitely related to the throttle stop screw being opened a little too much.
Being that the stop screw was set , then tps was set based off the incorrect position it was causing the IACV to essentially overwork.
Based of my own study and multiple tests I resolved the Idle issue and Dieing in Neutral or Deceleration in this manner:
-Removed the Coupler from the throttle body to expose the throttle butterfly
- Unscrewed the 8mm nut on that locks the throttle stop screw
-Used appropriate allen key to
First, loosen stop screw completely
Second, tighten stop screw until it starts to move the butterfly which means its compressed against it.
-You will then verify TPS is set , I set mine to .45
--Cranked the car, let it get to 180 degrees then adjusted the idle with my IACV
-Take it for another drive and adjust IACV as needed for higher idle
So far I drove it for a couple hours and it hasn't died once.
Hope this helps someone else!
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