has trouble starting

Hello, the check engine light indicates that there are diagnostic trouble codes (DTC's) stored that may (or may not) help in the diagnostic testing to determine why you are having trouble starting your Neon. It's a good place to start, however -- so, enlist the help of a technician at a certified shop near you for help! Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops