sorry I can not help but to intervene especially to the explanation of Backgroop that has nothing to do with the clutch pedal and abs.
the abs system has nothing to do with this problem since it acts on the braking to balance the brakes so that the wheels do not inchiodino beyond a certain threshold!
According to.....the "sensor" on the clutch pedal that is not a trivial switch, or in some cases a switch 3-pin 1 resistance for the running of the signal 0 and 1, so this is not unstable, is used for the cutting of the fuel or, better, the exchange of sweet gear, or when you press the clutch without that, this would be on of turns the that at low speeds and just annoying but at high rpm it has a bump not indifferent.
This has the function of cutting fuel, the need to keep the rpm stable, the pressure of the clutch.
then I would like to understand what we're talking about!!!!!.....
It certainly is a problem abnormal, and I don't think that is it electrical nor electronic!.....I may be wrong but I don't think that electronically there is nothing wrong.
with regard to the blessing I believe it is intended as a me to the problems absurd!!!.......but you will also a specialization where many do not resolve.
I conclude that the clutch is hydraulic not flush and the diesel for most of the systems off other then the slight pressure it already has a mechanical movement!.....