Difference between revisions of "17705/P1297/004759"

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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 11:47, 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.