Difference between revisions of "17964/P1556/005462"

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==== Possible Symptoms ====
 
==== Possible Symptoms ====
  
* Boost pressure too low
+
* Reduced power output
* Reduced power output (limp mode)
+
* Limp mode
  
 
==== Possible Causes ====
 
==== Possible Causes ====
  
 +
* Boost Pressure too Low
 
* Hoses/Pipes incorrect connected, disconnected or leaking
 
* Hoses/Pipes incorrect connected, disconnected or leaking
 
* Charger Pressure Control defective
 
* Charger Pressure Control defective
** Solenoid Valve for Boost Pressure Control (N75) defective
+
** VNT (variable nozzle turbo): nozzles stuck
 +
* Solenoid Valve for Boost Pressure Control (N75) defective
  
 
==== Possible Solutions ====
 
==== Possible Solutions ====
  
 
* Check Hoses/Pipes to/between Components
 
* Check Hoses/Pipes to/between Components
* Check Charge Pressure Control
+
* Check Solenoid Valve for Boost Pressure Control (N75)
** Check Solenoid Valve for Boost Pressure Control (N75)
+
* Check / Clean / Replace Charge Pressure Control
 +
** Check / Clean mechanism for variable nozzles
  
 
[[Category:Fault Codes]]
 
[[Category:Fault Codes]]

Latest revision as of 16:09, 11 June 2006

17964/P1556 - Charge Pressure Control: Negative Deviation

Possible Symptoms

  • Reduced power output
  • Limp mode

Possible Causes

  • Boost Pressure too Low
  • Hoses/Pipes incorrect connected, disconnected or leaking
  • Charger Pressure Control defective
    • VNT (variable nozzle turbo): nozzles stuck
  • Solenoid Valve for Boost Pressure Control (N75) defective

Possible Solutions

  • Check Hoses/Pipes to/between Components
  • Check Solenoid Valve for Boost Pressure Control (N75)
  • Check / Clean / Replace Charge Pressure Control
    • Check / Clean mechanism for variable nozzles