i have been programing the different tunes and was going to try logging some data. but what is the process to go about this? i mean do you still have to have the radio fuses taken out? also can you drive for an extended period of time or only short time periods?

i have a 2006 duramax diesel with ...

2006 lbz duramax
predator u7186

i just recieved my unit yesterday and i love it. but just out of curiousity, if i do have a check engine soon light, does the unit just tell you a code and then you have to look it up to see what the problem is, or does it actually tell what the code and problem is ...