16618 fault code

vw754

vw754

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16618: Boost Pressure Regulation: Limit Exceeded (Overboost Condition) no lights come on in the dash,car go's very slow...cant get it to go over 80mph.........only does it in higher gears on A roads etc.........if i boot it local its ok.

N75 has been making a whirring noise for about a month now.
 
this is what Rosstech say

[h=4]Possible Symptoms[/h]
  • Malfunction Indicator Light (MIL) ON
  • Boost Pressure too high
  • Reduced Power Output
[h=4]Possible Causes[/h]
  • Hoses incorrectly connected, disconnected, blocked or leaking
  • Boost Pressure Control Valve (N75) faulty
  • Boost Pressure Sensor (G13) faulty
  • Turbo Charger stuck/faulty
[h=4]Possible Solutions[/h]
  • Check Charge Pressure Control System
    • Perform Output Test (to check the Turbo Charger)
    • Perform Basic Setting (to check the Charge Pressure Control)
    • Perform Pressure Test to locate Leaks
  • Check/Replace Boost Pressure Control Valve (N75)
  • Check/Replace Boost Pressure Sensor (G13)
  • Check/Replace Turbo Charger
Category: Fault Codes

 
Perform Basic Setting (to check the Charge Pressure Control) any ideas on how to?
 
would a faulty n75 cause a underboost or overboost?
 
BUMP !!!!!!!!!!! i disconnected n75 via all the pipes re-connected...............cars ok now !:think:
 
Vw745 IM having the same issues help me out bro !
 
I'm now having the exact same issue. any updates to this? My cars done 150000 im hoping its not the turbo
 
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