Pevgeot 307 1.4 Istop problem

Friends, first of all, I am new to you 2007 demol 307 1.4 I have my car, when the atiker brand gas is present in my car, there is no problem when I am on the move, but when I stop, the relay of my vehicle does not stop in balance, so there is no problem in gasoline, I live only in the gas, or if you have experienced this problem or advise. I am waiting for your help, if you have any, thank you in advance

Okan I have 1.6 wasters in the system, when the vehicle is cold, the first time I switch to the gas when I switch to the gas, it has not been solved.

Check the hoses leading to the map sensor, there may be air hoses coming out.