After reading all 39 sticky pages of the "EGR Blanking Mod", I am trying to follow Willo's method for blocking the vacuum hose at the T-junction near the vacuum pump. However, I find that the hose has already been blocked with a screw, BUT AT THE OTHER END of the hose! See attached picture. Does this matter? Where would the other end of the hose have connected to? Do I need to check that the original connection site is blocked off as well?