Have Jeep Questions? Ask a Jeep Repair Expert for Answers
Good evening and welcome to JustAnswer!!
Have you checked and see what codes are in the PCM? If not that's the first step in determining what is wrong and I would suggest connecting a scantool to retrieve the codes and post them here so I can tell you what to check. You can try cycling the key 3 times and see if any codes appear in the odometer but if not then you will need a scantool or cheap code reader... The Gas Cap message has nothing to do with your no start issue.
Keep me posted
Thanks for the reply!!
What is the last 8 digits of your VIN so I can check on any related stalling cases?