hi all, replacing the egr valve with a blanking plate kit on a p reg disco, need a little help on this, the solinode that runs the egr valve has three pipes, (asome that these are vacume pipes). One attached to nothing, one that goes to the egr valve and one that taps into the brake servo vacume hose, the one that goes to the brake vacume hose is connected by a T connecter, if i remove all old solinode pipe work(don't like thing left loose in engine bay) do i need to replace this T connecter, checked some web sites but none mention this pipe that goes to the brake servo hose.