Thanks for the info . Oh curious about something, at the early stages of all my truck mods before i bought my efi live V2 in 2009 i ordered a tune that came in a pcm as i did not want to send mine out and that would leave me with a space. I put it in my truck for a while before i put my original back in when i got my V2. I did not get any trouble codes or any vats problems , i was under the impression that if either the pcm or bcm was changed they would have to have a learn procedure done between both of them . Thank you . Eric