Thank you BadMouth for your answer!
Concerning my pedals, erything is OK now, they became back to normal
As I told you before, i have another major issue the logitech momo racing is very hard to turn, i would like to have it smooth for selecting games in Hyperspin, or simply when running it in windows 7. The only way to get it smoother is to go to test it in the "Windows USB game properties" and set in the settings the "center spring options" to 0%.
But when I close the "Logitech Momo properties Window", it becomes hard again
And if I modify the center spring options to 0% in the LGS, it does not work