I currently have tuning by a shop that doesn't do the tuning anymore. I just recently removed my lift and thus went to a smaller tire size. I tried calling another tuner to just buy new tunes. Well they can't turn off the EGR, even though there isn't one on there, so my check engine light will come on. Is there a way to change just tire size with the current tuning, or will I have to suffer with the CEL being on all the time?