16683/P0299/000665

16683/P0299/000665 - Boost Pressure Regulation: Control Range Not Reached

Possible Symptoms

• Reduced Power Output
• Limp Mode

Possible Causes

• Hoses/Pipes incorrect connected, disconnected or leaking
• Charger Pressure Control defective
• Turbocharger faulty
• Diverter Valve faulty

Possible Solutions

• Check Hoses/Pipes to/between Components
• Check / Clean / Replace Charge Pressure Control
• Check Turbocharger
• Check Diverter Valve

Special Notes

• If the Turbocharger is faulty due to mechanical / internal problems or the exhaust system is restricted (typically the Catalyst) this fault may be the end result.

Gasoline

• When found in 2.0l TFSI:
  • Check Boost Pressure Control Valve (N249), for cracked rubber diaphragm. A new/optimized Valve is available under Part # 06H-145-710-D (or newer).
    • RoW vehicles see: TPI 2016331 for details.
    • NAR vehicles see: TSB 01-07-70 or 2013392 for details.
  • When stored in conjunction with misfire codes and/or fuel trim faults see the notes associated with the following faults regarding PCV failure: P2279, P1136, P1297, P1093 and/or P0507.

• When found in Audi A4/S4/RS4/Cabriolet (8K): 2.0l (CAEB):
  • See TPI 2031245/6 - turbocharger excessive waste-gate play.

Diesel

• When found in VW Golf/Jetta (1K): 2.0l CR-TDI (CBEA/CJAA):
  • Verify the mechanical part of the Exhaust Valve Control Module (J883) is not seized or binding.
• When found in the 1.9 L TDI-PD (BLS):
  • Check vacuum supply from the vacuum reservoir located in the valve cover for leaks. Using a vacuum gauge, wiggle the valve cover and hose connections to check for a leak. The following photo was submitted from a customer working on a 2010 VW Caddy (2K chassis) with this vacuum reservoir problem.