View source for 16683/P0299/000665

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== 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 (AXX/BGB/BPJ/BPY/BWA)|2.0l TFSI]]:
** Check Boost Pressure Control Valve (N249), for cracked rubber diaphragm. A new/optimized Valve is available, see parts catalog.
*** Audi NAR TPI 2013060
**** https://static.nhtsa.gov/odi/tsbs/2015/MC-10119942-9999.pdf  NHTSA
*** VW NAR vehicles see: TSB 01-07-70 or 2013392 for details.
*** RoW vehicles see: TPI 2016331 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: [[18711/P2279/008825|P2279]], [[17544/P1136/004406|P1136]], [[17705/P1297/004759|P1297]], [[17501/P1093/004243|P1093]] and/or [[16891/P0507/001287|P0507]].

* When found in 2009-2012 Audi with CAEB engine:
** See TPI 2031245 -  turbocharger excessive waste gate play.
*** https://static.nhtsa.gov/odi/tsbs/2013/SB-10052519-6931.pdf  NHTSA
**** http://www.youtube.com/watch?v=efWOPtAw1Ss shows an example of excessive waste gate play.

* When found in All 2008 to 2015 Volkswagen vehicles with the 2.0L TSI Engines (codes CCTA and CBFA)
** See Volkswagen Tech Tip 21-10-02.
*** https://static.nhtsa.gov/odi/tsbs/2015/MC-10122981-9999.pdf  NHTSA
*** This Tech Tip suggests to check if the wastegate valve and lever has dropped and become stuck/seized causing either an over-boost or under-boost fault. P0299, [[16618/P0234/000564|P0234]] or P0236.
*** This concern can be intermittent also clearance between the turbocharger housing and the wastegate lever should be about 3.0mm.

===== Diesel =====
* 2009-2014 VW NAR with 2.0 CR-TDI (CBEA/CJAA), TSB 21-14-03 or TPI 2026771 has several items to inspect and verify to factory design. 
** https://static.nhtsa.gov/odi/tsbs/2014/SB-10055860-4792.pdf  NHTSA
* 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 [http://wiki.ross-tech.com/wiki/images/thumb/5/57/Volkswagen_Caddy_%28BLS%29.jpg/800px-Volkswagen_Caddy_%28BLS%29.jpg  vacuum reservoir problem].

[[Category:Fault Codes]]