17705/P1297/004759: Difference between revisions

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==== Possible Causes ====
==== Possible Causes ====


* Leaking hoses and/or pipes between components
* Leaking Hoses and/or Pipes between Components
* Check Boost Pressure Control Valve (N249)
* Boost Pressure Control Valve (N249) faulty
* Throttle Body dirty


==== Possible Solutions ====
==== Possible Solutions ====


* Check hoses and/or pipes between components
* Check Hoses and Pipes between Components
* Check / Replace Boost Pressure Control Valve (N249)
* Check / Replace Boost Pressure Control Valve (N249)
* Check / clean Throttle Valve, do Throttle Body Alignment
* Check / Clean Throttle Body
** Perform Throttle Body Alignment


==== Special Notes ====
==== Special Notes ====

Revision as of 16:47, 15 June 2010

17705/P1297/004759 - Pressure Drop between Turbo and Throttle Valve (check D.V.!)

Possible Symptoms

  • Power Loss

Possible Causes

  • Leaking Hoses and/or Pipes between Components
  • Boost Pressure Control Valve (N249) faulty
  • Throttle Body dirty

Possible Solutions

  • Check Hoses and Pipes between Components
  • Check / Replace Boost Pressure Control Valve (N249)
  • Check / Clean Throttle Body
    • Perform Throttle Body Alignment

Special Notes

  • Did anyone install an extra (wrong) dump valve?
  • 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.