Volks AutosEM Tuning
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  1. #1
    RobinA3's Avatar
    6th Gear

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    Boost Issue - Boost Pressure Regulation: Control Range Not Reached

    Drove the A3 this afternoon and noticed that it wasn't boosting properly, part load is fine but go into WOT and there is a massive drop in performance.

    Scanned the ECU and got the following fault code:

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

    Did a search on the internet for info and got this:

    Possible Symptoms
    Reduced Power Output
    Limp Mode

    Possible Causes
    Hoses/Pipes incorrect connected, disconnected or leaking
    Charger Pressure Control defective

    Possible Solutions
    Check Hoses/Pipes to/between Components
    Check / Clean / Replace Charge Pressure Control

    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 # 06F-145-710-G (or newer), see TPI 2016331 for details.

    I changed the recir valve 4 years ago when i remapped the car to the type ' B' level which was then the uprated item.
    Looks like i will be doing the job again this weekend on the driveway, anyone had this same issue recently?

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  3. #2
    RobinA3's Avatar
    6th Gear

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    Issue found, it was the divert valve that was split. Price of the part has gone up from 25 to 45!!!

 

 

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