On cold starts, after the car has been sitting overnight for example (not necessarily COLD outside). I have it starting and idling fine...no surging...everything is working as it should. Once I drive the car for a bit, shut it off for say anywhere from 15 minutes to an hour or so, it idles dead lean for about 45 seconds or so, then comes back. I was looking at the afterstart enrichment stuff, but there seems to be about 4 different ways to address this issue. I was wondering what everyone is using with success? Any input would be great!