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How to troubleshoot the Wastgate or N75 valve problem?

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Old 07-10-2002, 11:38 AM
  #11  
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Default No I thought we agreed that's where it was coming from

passenger side, almost right up against the fire wall.
Old 07-10-2002, 12:56 PM
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Default FWIW, i bought an extra N75 ($75) when I was trying to determine if there is something wrong with

what i have
Old 07-10-2002, 01:00 PM
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Default make sure the hose going opposite the hose going to wastegate actuator is straight

thats the hose going to the EVAP system. I had this issue during my t28 install, this hose was squished. I was getting low boost since N75 cannot redirect air pressure away from the wastegate actuator
Old 07-10-2002, 01:10 PM
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Default I'll check that and maybe buy an extra N75

Rather fix it myself than take it to the dealer.

Thanks for the help, your car look schweet, what mountain is that?
Old 07-10-2002, 03:46 PM
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Default You can test the N75 valve electrical function via the VAG Com test. Further you can test whether it

leaks by removing it, plugging one of the two inter-connected short legs and blowing or applying (human)vacuum to the remaing short leg. Per Bentley's if it leaks air the valve should be replaced.

You can also run the Vag Com Diagnostic Test Mode and while it is running blow into the long leg .. it should alternately allow and stop passage of air.
Old 07-10-2002, 07:17 PM
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Default

edited to correct an error and added a bit more info
Old 07-10-2002, 07:53 PM
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Default EVOms soldered the chip in

nope, no air leak sounds
Old 07-10-2002, 08:48 PM
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its a hill called Mt. Killington in VT =)
Old 07-11-2002, 06:35 PM
  #19  
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Default If your still tracking this thread

these are taken on, yes on a lake by my fav little mountain called Gore :-)

<img src="http://images.fotki.com/v3/photos/1/19447/89948/DSCF1343-vi.jpg?1018139985">

<img src="http://images.fotki.com/v3/photos/1/19447/89948/DSCF1338-vi.jpg?1018139985">

God do I love quattro!
Old 07-11-2002, 06:45 PM
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cool!


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