05 GTO 5 Sec Non Idle Surging at Coast

[Spacegoat]

I am running with no MAF sensor using a IAT relocate in my Varam CAI. I have the hood opened up and get cold air quickly. The tune is a 2Bar (2.5Bar?) SD. The tune seems pretty good except that when I am driving and push in the clutch to slow and/or coast, I get idle hunting for about 5-6 seconds and then the idle becomes stable once again. The only thing I can see from the log is that the TPS seems to fluctuate approx. 1-3% while not touching the pedal at all (frame 600-700 & 920-1020). Could this be the culprit?

Attached is my tune as well as a log file. In the attached log file I ran WOT 1st thru 3rd and then a constant speed. Depressed the clutch and coasted (frame 600-700 & 920-1020).

Any help would be greatly appreciated.

[Spacegoat]

Anybody Have some thoughts about this.
I appreciate any help.
Thanks

[383]

could the Vararam be causing turbulent air over the MAF when the throttle closes?
just a shot in the dark

[Kyne]

No maf. It looks like your idle airflow to me.