Re: vw passat p0299 fault
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
- 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: Crankcase Breather Valve
- 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.
- 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 siezed or binding.
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Re: vw passat p0299 fault
Quote:
Originally Posted by
ciaran13
Hi I have a sept. 08 vw passat 2.0tdi sport. The problem is that it feels dead and when pulling up a hill it will loss more power and the heating coil light will come on. The fault I am getting is P0299 turbo under boost. I changed the N75 valve but no good. The problem seems to come in over 2000 rpm. Also it seems to be a electric waste gate valve ( would this be right).
The engine is a 2.0 tdi (140) CR type
Many Thanks
It's a common fault. The turbo actuator, what you called an electric waste gate valve probably needs renewing. If you get a proper code read it will probably tell you that. P codes are poor for diagnosis.
