P2279 air leak in intake system

What engine is it ?
From Ross tech Wiki http://wiki.ross-tech.com/wiki/index.php/18711/P2279/008825

18711/P2279/008825 - Leak in Air Intake System
Possible Symptoms
  • Malfunction Indicator Lamp (MIL) active
Possible Causes
  • Vacuum Leak
  • Intake Manifold Runner Position out of Specification
  • Faulty Positive Crankcase Ventilation (PCV) System or Heating Element (N79)
Possible Solutions
  • Check Intake System for Leaks
  • Check Intake Manifold Runner
  • Check (PCV) System and / or Heating Element if applicable
Special Notes
  • When found in the NAR 2.0T (BPY) check RVUTB: 01-09-03 or 2018919 for updated Crankcase Breather Valve
    • If the breather valve is faulty, full engine vacuum is typically found when removing the oil cap at idle.
 
my apologize should have noted the details.

a4 2.0 tfsi b7 se sline

also to be noted ive recently had the pcv replaced to a new revised one, also new revised coils.
 
If you just had your pcv replaced, check there is no split in the U shaped tube between the pcv and the intake manifold.

They become quite brittle over time and quite easy to damage. I had the same fault after replacing the pcv, was because of the pipe ☺
 
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