What’s missing from my Hyundai i10?

Hello you love, I am absolutely desperate! For about a year now my motor control light has been shining through. I was in 4 different workshops and no one can tell me what the problem is. I was also at a Hyundai workshop where I was only told you had to disassemble the engine completely, gradually, until you might find something. That would cost several thousand, which does not pay off. Now I just wanted to see if maybe someone has an idea or from it When it’s cold outside and the car is standing something, it doesn’t attract immediately when it’s starting, but only after 20-30 seconds. Sometimes it’s a bit of a jerk. After that, it runs without problems! In the error readout it always shows a sensor – all sensors have been replaced – none of it was the problem. I was only told to give the car the best turn and if I don’t overtake it and avoid the highway because maybe the engine at some point simply a I am really helpless and would be happy about ideas and advice! Greetings Anna Zum Auto: Hyundai i 10 Official name: “IA (I10 1.2) 5984/AAU EZ 2015 – ca 87000 km