my car idles right at 500 and is really quiet. its nice, but is that bad for the engine or anything...? the idle screw is all the way in. b18b

 

its a little low. id out that idle screw til its @ 750 (remove the iacv plug when adjusting).

 

Screw shouldn't be all the way in. Low idle won't do any damage, just will make it sloppy when you first hit the gas from 500-1000 it will be sloppy. I have mine set too 800rpm. Less engine vibrations on my old *** mounts.