2JZGTE Haltech Elite 2500 Cold Engine Hang

So I've been working on cold engine tuning. My car has a perfect cold startup. It also drive perfectly during the engine being warm. However, I'm trying to find what setting is causing the car to have rev hang between shifts or after coming to a stop the idle will hang higher than the idle settings. My stepper motor IACV settings are tuned and the decel is turned off until car reaches 70C. Any advice on where to go?

Thanks!

Hi Peter,

From logging, is the IACV staying open when this happens, or is the throttle blade not returning to the idle position? If the Throttle is returning to below the Idle Control enable threshold, is the Idle Control turning on?

It's been a while since I last used a Haltech Elite, so I cannot remember if there is a parameter that you can set for the stepper motor to go to when not in Idle Control.