If you can get it to start up again, first thing I'd do (either w/ the car idling by itself or someone giving it moderate throttle to hold it close to where it would normally idle) is disconnect the EACV, just pull the plug - the idle should drop when you do this, but not quite low enough to stall. If it does stall when you do this, it could be that the mechanical idle setting somehow changed. I forget the exact setting, but it's supposed to be ~450rpm I believe with the EACV disconnected. It varies a little depending on MT or AT, but not much. The "actual" idle varies more depending on trans., w/ the EACV working it's 650 MT, 750 AT.