No Accelera Fors Fiesta 1.4 TDCI

Thanks for the answer.
For me it is a bit complicated to make those checks since I am not very much on that, the car starts well it has a long time to start up then everything perfect, I have come to appreciate that when the gasoline is stopped for a long time, it seems to look back and can be the reason why it is difficult for him to go to the former, they have told me to put an antiretorne valve and I would like it to do it? May the filling pear be spoiled? I put it on that pear?
Thanks a greeting

I understand perfectly your situation, it is that you have a fairly complex problem and impossible to solve home You could risk getting the pedal (it is easy and the most suspicious for me) and getting another equal in scrapping, but it would be your decision to do it and not my recommendation without at least measure it.
I put a photo of the pedal.