I have a diablo sport chip not programer on my 02 supercharged HD. If i take it to the dealer and they reflash my computer will i loose the chip tune?

 

Not sure how your tune accesses the PCM but if by an outside chip, remove it because the dealer will either remove it or refuse to do the reflash.
If it altered the PCM program semi permanently then yes you lose the tune and have to reapply it..
This can become some expensive playing around.
Good luck.

 

O.K. thanks. For the info.