Scotty i have a 2011 infiniti G37 sedan, last time an OBD scanner was hooked up to it it displayed "vehicle not found" any ideas why this may be? it was not registered at this time. Thanks.

well, sometimes you have to manually input the make model and year. if that doesn't work, either your scan tool is bad or the data link port in the car has a problem with wiring or bad sensors on the computer system