Not to be rude, but that is one of the most misinformed question I think I've ever read. I don't even know where to start answering.. :thinking:

OBD2 isn't an object, it's a version of software (for a lack of a better description). The difference between OBD0, 1 and 2 is like the difference between Windows 3.1, 95 and 2000.

OBD1 was discontinued in 1995 and OBD2 took over. The future will soon hold OBD3 (if it hasn't been released already). There are also 2 versions of OBD2, but I'm not well versed in that area. :happysad:

I think that the best place to start with this is to ask if your Check Engine Light (CEL) is on? And, what are these 'customizations' that you have done?