Consult, failure on Twingo

They could collaborate with something that happens to me with my Twingo, the car turns on very well is heated normally. Already in the march generally when it sunbathes, it is suddenly turned off, turns out again without problems, but when the same thing happens and you have to let it cool so that it works well again for a while. I would like to know the possible causes?

ñp first has checar is fuel pump, coil and contact sheet