Since it ran on it's own, I would do the key dance and check for codes again. You may have picked up a new one.

As indicated in my PM to you, I would also do a search on this site as well as the allpar EEK forum, lots of threads about no-starts and stalling and several ex-Mopar techs who answer pretty quickly.
This page is a pain to sift through but may some good info for you: http://www.allpar.com/fix/index.html

Keep posting on progress.