My Twingo accelerates and slows down, then turns off

solvedoooooo !!!! They are not going to believe what the problem was, and I caught it by chance, well, it was the butterfly body position sensor and disconnect it just because it bothered me to get the absolute pressure hose forgot to connect it again and I started the car, big was the surprise that the car worked normally without accelerating or wanting to go out, well I take out that feet and I was like it, I was like it. Tremendous since I did not want to get rid of my separate twingo is the cheapest vehicle that I found so far

small but powerful that is my twingo !!!

Thanks to all the apinantes !!!