Check gas cap and check engine light came on during a trip. Now it won't go off

Hello, sounds like an ongoing evaporative emissions system concern -- considering, of course, that you checked to ensure your fuel cap was fastened securely. Hands on testing of this system is required by a technician who has proper diagnostic equipment, workshop manuals and experience. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops