Well I recently got my car back up and running, but it seems like everytime I let off the throtal the rpms dip very low (100-200) and then slowly come back up to where I have my idle set at (900). It even died on me twice as I was on my way to get an alignment.

I've adjusted the duty cycle up and down on the IACV, but it doesn't seem to do much.

Would this be an idle screw adjustment problem?

TIA,
Bryson

 

Unplug the idle air control plug , the idle wants to be around 500-600rpm. Turn off ignition, plug IAC back in , start car, idle should be where you tell the hondata.
Just tuned a Hondata this morning, had to to this to fix idle.