Quick question about LTIT long term idle airflow stuff is confusing?

[kingtal0n]

Hello!

So I am new to GM ecu 411 and HPtuners
I've used this computer for a couple years, its been great but there is still one strange behavior I don't really know what is causing this,

I was hoping to get someone's insight real quick

Here is the situation,
After I upload a tune the car starts and idles fine.
I've uploaded 100 tunes etc... and never have an issue.

While I drive the car I always notice the scanner is telling me "STIT" (short term idle trim?) is like -0.2g/sec
Which is what I wanted, I had decreased the RAF over time to get this number quite small.

So its basically perfect all the time. No issues so far....

HOWEVER
If I unplug the battery and wait a while. Then Re-start the car,
suddenly the idle is WAYYYY too low.

When it fires up it wants to die all the time.

So my initial guess is the Running airflow needs more airflow added.

thats my guess?!

Why is this so confusing to me: why does the scanner tell me the STIT is 'removing airflow' from base running airflow,

when in fact it seems like the long term idle is raising the airflow?
Or something like that?

Basically I am trying to figure out why when I upload a new tune "fresh slate" its like the computer remembers where the optimal IAC position is even though its a fresh tune,
but
when I remove the battery and restart the car, the idle is wayyy too low for a while.
What exactly is happening, why does LTIT do this without telling me what it is doing, or
how can I see what LTIT is 'doing'

[kingtal0n]

I just added plenty of raf and as expected I see STIT is like -2.8 instead of -0.3 like I had it set before,

why the display -3 is required if I want to yank the battery for a couple hours, its like the STIT is 'wrong' now but the whole thing is right