I picked up the ez-2000 autoxray, dont know much about it but it will read OBD! an OBD2, gives the code numbers and what it see'* as possable problem, example! "out of range".
I think im missing something, It should do more than what i'm seeing, I dont see any RPM'* or if 02 sensors is toggeling. I have had it for about a month it beats having to go to o'riles auto parts just to read the same code all the time.