3000 RPM idle started this at the track yesterday

[hellotbone]

Yesterday at the track I unloaded the car and let it warm up until it idled at 800 RPM then went for a couple runs. After then 4th run I noticed my car idling high when I turned off. It was at 2200 RPM and the logger and afc show 2% throttle. So I look under the hood and there is slack in the cable etc and I try unplugging the TPS and it still wouldn't idle down. Checked the BISS and its almost all the way in as it was to make my car run properly. They only thing I can think of left is an IASC problem or the adjuster for the TB to close more moved but I can't see how. I'm off on vacation now all week so it will have to wait until I am back. If anyone comes up with any suggestions while I am away I am open to them. Otherwise I will dig into the manual and trouble shoot when I return.

 

[ddavisaf]

Don't forget to run your boost leak test
Pop off the TB elbow and check to make sure it's "closing" under idle. Numbers can be wrong sometimes.
That's all I got

 

[hellotbone]

Turns out I didn't have the jamb nut tight on the idle adjust screw on my 1g TB and it got tighter holding the TB open slightly giving me the high idle problem. Simply adjusted the screw back and now my idle is perfect.