State police are investigating a crash involving a stolen car.  A 20-year old Danbury man and a juvenile were arrested on Sunday evening.  State Police responded to a report of a single car crash on I-84 in the area of exit 3 and found the vehicle unoccupied, with heavy passenger side damage.  State police say they spotted two people running on the off ramp and determined that they were the occupants.  Stephen Felax and the juvenile were charged with larceny and interfering with an officer.  The youth was released to a guardian while Felax was held on bond.