OK issue with 6l80E

[04blackgmc]

look at the log at 7:35 is this what is kinda causing the jerky downshifts slash falling on its face.. look at the Way negative timing pull on a 60-70% downshift...
i loaded my stock tune trying to figure ou what is causing my jerky 6thg gear downshifts so i loaded the stock tune.. Hopin i didnt "hurt" the tranny...

never noticed this jerky downshift stuff when i had Tm disabled..

maybe someone can help me out..

tranny feels great with stock tune besdies these 6-4-3 downshifts...

its been so long i cant remember if the stock tune felt like this..

[midevil1]

What usually causes the jerky downshifts is overlap in the speed settings. Have you played with these? I have seen the A6 grab 3rd at 105mph. Not a pleasant feeling. I like to tune the tranny so skip shifts are eliminated and down shifts are predictable. I am only speculating because I am not on my tuning laptop. I promise I will look at the tunes you sent me.

[04blackgmc]

What usually causes the jerky downshifts is overlap in the speed settings. Have you played with these? I have seen the A6 grab 3rd at 105mph. Not a pleasant feeling. I like to tune the tranny so skip shifts are eliminated and down shifts are predictable. I am only speculating because I am not on my tuning laptop. I promise I will look at the tunes you sent me.

i noticed it with the stock tune and my lastest tune where i put a little Tm back in...

u mean the auto shift speed tables part throttle correct??

ill get some screen shots

[midevil1]

i noticed it with the stock tune and my lastest tune where i put a little Tm back in...

u mean the auto shift speed tables part throttle correct??

ill get some screen shots

Yeah, but the tranny will not cause a misfire issue. A misfire will cause the tranny to shift all over the place.

[04blackgmc]

i will post a screen shot of the tune i ran for awhile and a stock tune... i seemed to start having problems once i added tm back in

my 5-4 part throttle shift is stock and so is my 6-5

here is the changes in normal and pattern A

[04blackgmc]

Yeah, but the tranny will not cause a misfire issue. A misfire will cause the tranny to shift all over the place.

after filling the tank back up with 93 AGAin, that misfire seemed to have left...

the lastest log i posted in the other thread i didnt log any misfire's and that was right afterfill up..

but notice the HUGE timing pull i bet that is what is giving it that jerky feel, i hope atleast..i doubt the tranny is hurt

[04blackgmc]

i have no issues with WOT downshifts they felt good with and without the TM its the 50-70% downshifts it doesnt seem to like with TM in the car

[04blackgmc]

also look at 2:54...

goes 6-5-4-3 goes 35* to -12.5* i sure that along with the gear hunting is causes that feel im getting so like i said its just in the tuning not the tranny it seems

like i said that log is a 100% stock tune