this is on a 99 c5 running 1 bar of boost.

i had the 2-3 upshift set at 6200/124 kmh last year. i took the car out the second time this year and it wouldnt shift, i ran into the limiter set to 6400 and saw over 6600 rmp. i did two logs like that and quit (i didnt like the 6600 at all). i lowered the shift point to 5800/118kmh and the trans shifted. i raised it to 6100/118 and it shifted. the next day it wouldnt shift any more. im sick of running into the limiter, the belt jumps a rib.

so, is the trans giving up the ghost or can that be some programming issue? (the first outing this year was just to check on the mixture, i made one pass to 5600, so i dont think it killed the trans.)