Help VCDS codes

hades-

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I have put this here as more members will see it
The problem is
From starting cold car runs as it should
once warm it either idles very uneven or revs its self up to just above 2k revs then drops back then up again.

car is a
18TFSI B8 2009

first code
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.
  • I cant not find any leaks at all
  • the PCV was changed 6 ish month ago
  • removing the oil cap doesn't alter how it runs ?
second code
01314 - Engine Control Module
01314 - Engine Control Module: No Communications
Possible Causes
  • CAN-Databus Wiring/Connectors from/to Engine Control Module faulty
  • Fault(s) stored in Engine Control Module
  • Engine Control Module recently flashed or re-mapped
Possible Solutions
  • Check CAN-Databus Wiring/Connectors from/to Engine Control Module
  • Check Measuring Value Blocks (MVB)
    • Usually Measuring Value Blocks (MVB) 125+ show the current Communication Status
01314 - Engine Control Module: Check DTC Memory
Possible Causes
  • Fault(s) stored in Engine Control Module
Possible Solutions
  • Check Engine Control Module for Fault Codes
Special Notes
  • Engine Control Module stored a Code which influences other Control Modules Functionality.
  • To clear this Fault Code you will need to correct the Problem in the Engine Control Module first.
I cant find any codes stored in the ECM it is re-mapped over a year ago.
Any ideas ?
where to look next ?

Also in vcds 01 engine I can not access measuring blocks and 04 basic settings has changed and I cant enter a value to access say the intake manifold runner etc its just got a drop down list of a few things.
 
You might be better putting this thread in the dedicated B8 sub forum.
 
the reason its in here as in the post is for more members to see it
as the codes cover most if not all 18T engines
 

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