The vacuum in the crankcase is very small, not something you can judge by hear or feeling, you need a gauge.
Change the spark plug tube first then.
A part is always fine before it breaks
For the code, try to clean the throttle body if you haven't!
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ASE certified Automotive Master Technician.
Porsche Tech in France.
www.benautodesign.fr
Ben-Auto-Design : Performance parts for 9X6 / 9X7
1982 928 S Euro
Threaded Mode
