[andi1571]

Hello I have a bmw m4 here totally stock vehicle and ive tried a couple of tunes on it from two different vendors and get a strange on off feeling and jerkiness when pushed hard on the gas and not shifting the gears like it should its sorting not shifting up when it should 

The stock file its fine only when tuned it does it ,  i expected to scan the car and find missfire codes but nothing at all.

Heres the orig and twi tunes ive tried i was just wondering if any experts on these cars know where the issue may lie?

thanks

[AZCKNCLLC]

Why don't you just tune it with mhd?

[Kilo-G]

Had a quick look and immediately found four questionable mods:
1) SA configuration and maps touched. Did you ask for any burble/pops&bangs stuff? Would have been done completly wrong anyway.
2) Messing around with knock recognition and knock configuration settings
3) A lot of internal (torque) monitoring DTCs disabled
4) Throttle opening: asking all the way 100% but 90 at 4000rpm. Why? Trying to control torque?
I would start fixing this mess and see if car behaves ok afterwards as the rest of the changes should not have any effects on driveablity.
BTW: there's only one tuned file attached

[andi1571]

Thanks for the help i think next maybe a good idea to try mhd or bm3