1999 Volkswagen Jetta can PCV valve affect manual transmiss

Transmission problem
1999 Volkswagen Jetta 6 cyl Front Wheel Drive Manual

Hello,

I have a 1999 vw Jetta vr6 5 speed manual.
The breather hose for my pcv valve was removed by a mechanic because it was cracked. He couldn't fix it, and left the hose off saying only my gas mileage would be affected until I get the vw part and put it on myself.
When the engine is off I can shift through all gears smoothly. But when the engine is on the clutch pedal doesn't seem to have the proper resistance and it is hard to even get the car to shift into first and then sometimes you can get into the other gears if you are lucky. But once you drive for a few miles the shifting gets easier and easier until it shifts normally. Ever since. Is this because of the missing breather hose or could someone who doesn't drive stick have messed up the cable linkage alignment for the stick shift.


Thanks

Matt