pavrom

i posted before about jerking , misfire …read so many e90 posts related to this
dealer can't figure out w/o codes
here is the story :
under hard acceleration 3-4k rpm i can feel some hiccups , no codes or check engine light
in D or DS - same
here is interesting fact i noticed :
when i start the car for the 1st time of the day , drive through the city stoplights and traffic for about 7-8 miles , everything is fine , leave the car for about 10 min running near office , come back , jump on the highway , get it all the way to 5-6k rpm 80-90mph.. - no hiccups or any issues , drive another 30 miles . shut engine off , start it in 30-45 min , hiccups are there , no matter how many times i shut off the engine - hiccups present , next day same story - i am guessing about ecu problems , car is completely stock engine and tranny …
so far i replaced all spark plugs , coils , tried some injector cleaners , ran the car for 30 min at 4k rpm on the highway to clean up valves old school method ….
don't want to give up on the car , really like it + i have already dr euro dp waiting to be installed
any ideas , suggestions …

pavrom

i had a guy coded my SZL module to have steering wheel heated and SAT retrofit …. don't remember if i had this issues before , can this be somehow related , do i need my edu updated to latest version or something ?