Decreased performance and motor lights during motorway journey

Moin together, I have problems with the Santa Fe at irregular intervals – especially with motorway rides between 120 and 140 km/h. The symptoms are always the same: – creeping down performance, hardly any acceleration possible – engine light (once blinking, sometimes steady) – on the parking lot then max 3000 rpm with pedal passed – error codes times P2002, times P2015 After a engine restart runs completely normal again.The error code can be deleted, then is quiet. T Can the 3000U/min be related to the “emergency program”? Can this problem also be related to the accelerator or the associated electronics? I had the feeling in between that there was a resistance when giving gas, for example, as if the floor mat was in the way, which it was definitely not. Can it be that there might also be a software problem here? Is there actually the possibility to play “software updates” n? Questions about questions. I thank you for helpful contributions! Greetings from the North Tojo375