Hanging Idle Issue

Hi guys, I am hoping someone may be able to give me some advice on fixing a hanging idle issue I have.
I have gone into the throttle cracker table and zeroed out the cells from 1600rpm and below and this made no difference to my issue.
When I unplug the IAC motor the revs return to idle nice and quick, as soon as I plug the IAC back in hanging idle is back.
Would I need to pull some air from my base running airflow table ??

And another issue I have is when I open the throttle hard from a idle speed I get a hesitation from the engine and sometimes a backfire in the
exhaust before the engine comes to life and accelerates away, what table would I need to adjust to fix this ??

Hi Rick,

Are you able to post a copy of your tune and a log showing the hanging idle?

Have you gone through the RAFIG/RAFPN tuning process at all? Have a look at these threads:

First (look at the PDF): https://forum.efilive.com/showthread...dmon-idle-info

Second: https://forum.efilive.com/showthread...ul-Info-Inside

Regarding your hesitation/backfire, posting your tune and a log will help nail down the issue.