TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

n75 valve

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Old Nov 20, 2006 | 11:14 AM
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KingTT's Avatar
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Default n75 valve

my car has been feeling slow these past few days i have a stage 3 kit. i vaged my car and im seeing a code that says check boost pressure control valve (N249). I looked up what that is and it looks like its the N75 valve is that right first of all? So i think i blew it and thats why i dont have the power i should have. i think my boost is spiking at 4000 rpm then im losing all my power after that. Anyone have some thoughts for me about my problem.

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Old Nov 20, 2006 | 11:17 AM
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The n249 valve supplies vacuum to the diverter valve. The n75 valve is a different part.
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Old Nov 20, 2006 | 01:22 PM
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Default The N249 is located under the cover at trhe centre of the spider web>>

of vacuum hoses leading to and from it. Check for leaks there.
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Old Nov 20, 2006 | 02:32 PM
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Default I think it's the grey box in the middle of this pic

<center><img src="http://lz7w.com/albums/silhose/IMG_0053.jpg"></center><p>
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