16618/P0234/000564
          From Ross-Tech Wiki
          
          
      
      
      
      Table Of Contents
16618/P0234/000564 - Boost Pressure Regulation: Limit Exceeded (Overboost Condition)
Possible Symptoms
- Malfunction Indicator Light (MIL) ON
 - Boost Pressure too high
 - Reduced Power Output
 
Possible Causes
- Hoses incorrectly connected, disconnected, blocked or leaking
 - Boost Pressure Control Valve (N75) faulty
 - Boost Pressure Sensor (G31) faulty
 - Turbo Charger stuck/faulty
 
Possible Solutions
- 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 (G31)
 - Check/Replace Turbo Charger