if the egr valve itself is leaking, it will not cause the engine to stall or run like that. the most you will have is an exhaust leak. just delete the vacuum lines and go from there.
__________________
FOR A WOUNDED MAN SHALL SAY TO HIS ASSAILANT
'IF I LIVE, I WILL KILL YOU. IF I DIE, YOU ARE FORGIVEN'
SUCH IS THE RULE OF HONOUR.