Hello, good morning, I have a 122CV Vito that seems that it is 20, in the slopes it does not happen to me of 3000 revolutions, of 100km/h today I have seen in mechanical forums that can be the admission sensor that carries a tube X below, I have been looking at it in the van, and it has the cables a little peeled .. and the tub that leaves below unconnected and I do not know where you can hook. due to that .. and where is the sleeve that leaves below? thank you