Pressure testing the intake system A question?

[Chuck Pierce]

Since the car did not pass smog I figured I would pressure test the 
intake system before i ripped into the car.
I found the short hose going from the crankcase pressure valve( this is 
the valve under the bend in the intake manifold) has a huge hole in it. 
I am headed to the local FLAP to get a piece of hose
Will the a pressure leak like this cause the car to run rich?
For all I know I will find more leaks after I get this one fixed.
Opinions please
Chuck Pierce
91 200tq 20v Avant