WOT lock up

[Camarokid08731]

for some reason im having a wot lock up in second and third i have a 4l60e with a tci 3800 converter. the lockup is disabled in hp tuners but still keeps locking up this is my second trans that is having this issue any ideas?

[KirkEvil]

Are you throwing any codes? I was getting a p0300 for random misfires because of the changed rotation mass when I swapped converters. The trans would do some wacky things shifting in and out of lockup because of it.