I use Hptuners and my truck tends to drop past idle a lot when driving on the street. It never stalls but it is annoying and I sometimes get a slight surge when it comes back up to idle. I don't know if it drops past idle because of my tiny converter or what. But I was wondering if it could be fixed with the throttle follower. I just don't know what follower tables to change as there are more than a few. Any help would be appreciated!

 

Try decreasing the decay rate so it hold the IAC open a little longer. Adjust in the mph areas where you're having the problem. Could also be base running airflow...have you calibrated that?

 

Oh yea, it seems like I change the RAF every day! I will check out the tables right now.

 

I decreased the decay rate in both P/N and Gear by 15%. I hope to be back in town this weekend where I can give it a try. Thanks Jake for your help