My vehicle stops and stops ... (206 XR)

Good forums dear friends

Very rarely he would stop, I wouldn't wear it, but nowadays, at the red lights, there are times when I am going to shift gears. Relay cannot collect himself and stops. I asked you first because I ate the piles from the masters from the services. I have done most things with your information thanks to this forum, maybe I can handle this too
If it exceeds me, I will show the master who knows his job in Bursa
what do you think is the problem or what might be related to me

Note: I said the same event is taking place in LPG and LPG, but does it from LPG, but not the same event in gasoline.

I think it may be bisected in the rolent sensor

replace idling valve ... same problem with me ...