Trans help plz!!!

[6.4straightchurnnin]

I recently was at the strip and launched my truck and it missed 3rd and now it's throwing the p1000 dtc code and it won't go in 1st 2nd or reverse any help?

 

[Dzchey21]

P1000 is your tuner


Sounds like your low/reverse drum might have broke

 

[6.4straightchurnnin]

so the code has something to do with my tuner? and Blowing the reverse drum is that not the same as the reverse hub?