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random psi on stock set up.

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  #1  
Old 08-25-2012, 02:38 PM
jcA4Quattro's Avatar
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Default random psi on stock set up.

hey guys,
Well a while back i ended up getting the audi tt boost controller, intake, exhaust and an APR dv. i know this isn't going to make me have a monster sleeper or anything but when i did a while back i was near 10 or 11 psi . Ended up dropping to about 7 after a found a leak and re patched that up.. Now with in the last few weeks i have had it going from 9psi to a 5 psi to 8 to 10 , etc.

It seems like at anytime it decides to just stop boosting anywhere. Anyways! it is very inconsistent, any idea's? could my turbo or waste gate be going? oh yea, i am creeping at 216k miles BUT i have maintained her well.
 
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Old 08-25-2012, 04:57 PM
Subarashī Kao's Avatar
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Originally Posted by jcA4Quattro
hey guys,
Well a while back i ended up getting the audi tt boost controller, intake, exhaust and an APR dv. i know this isn't going to make me have a monster sleeper or anything but when i did a while back i was near 10 or 11 psi . Ended up dropping to about 7 after a found a leak and re patched that up.. Now with in the last few weeks i have had it going from 9psi to a 5 psi to 8 to 10 , etc.

It seems like at anytime it decides to just stop boosting anywhere. Anyways! it is very inconsistent, any idea's? could my turbo or waste gate be going? oh yea, i am creeping at 216k miles BUT i have maintained her well.
have you try a different boost gauge?
 
  #3  
Old 08-26-2012, 02:14 AM
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If by boost controller you mean the n75 I'd suspect that. If its going on the fritz it would explain the random on/off boost control you're seeing.
 
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Old 08-26-2012, 07:39 AM
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Originally Posted by ImTheDevil
If by boost controller you mean the n75 I'd suspect that. If its going on the fritz it would explain the random on/off boost control you're seeing.
That's what I was thinking. Try putting your stock N75 back in and see if it smooths things out.
 
  #5  
Old 08-27-2012, 02:05 AM
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yes i do apologize it is the N75. Was talking to someone earlier about it and got boost controller stuck in the head . I have tried a few gauges and all read the same. The N75 is barely 4 months old and is an oem part for the TT. I will look into that a bit more, is there a way to test it?

thanks guys
 
  #6  
Old 08-27-2012, 07:11 AM
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Originally Posted by jcA4Quattro
yes i do apologize it is the N75. Was talking to someone earlier about it and got boost controller stuck in the head . I have tried a few gauges and all read the same. The N75 is barely 4 months old and is an oem part for the TT. I will look into that a bit more, is there a way to test it?

thanks guys
Only way to test it that I can think of is swap in a different one and see if it helps. Might be able to do an output test or log measuring blocks on it if you have access to Vag com, but I don't know the procedure for that off the top of my head.
 
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Old 08-27-2012, 11:54 AM
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okay, thanks CCA4. May first take a trip to the junkyard and pick up another before i buy another.
 
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