and when I come to a stop, the idle dips to 550 a few times and finally settles. I don't get any stalls. My mods are upgraded smic, J/midpipe, and Unichip. I've reset the ECU and cleaned out the EGR. Any thoughts?
So, a small vac leak would cause the RPM's to dip? I'm experiencing the same thing. Except mine did it before I even installed anything aftermarket. Time to check all my lines tomorrow.