2000 to 2002 cos5 auto VE problem

[RandyWS6]

Ive been doing some logging and have a problem with vilent bucking from off idle (But idles fine) but when i pull out and up to 2400 rpm it bucks vilently ,this is a M6 car, But above 2500 rpm it runs fine, but i can put my 2000 tune back in and run fine threw all rpms. can some body look at my log and COS5 tune and see if there is any thing wrong in the low rpm range. if i could get rid of the bucking i could get my auto ve tune done. In the log you can see the WB oscillating from 12.0 to 19.0 ,it bucks so hard it jerks my foot off the throttle. Here is a snap shot of the log were it shows the bucking ,this pic is fron the same tune that i have posted up here.