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Discussion Starter #1
I had got a new n75 and a short ram intake For a 2004 1.8t passat and before I was hitting 10psi and after I replaced everything I’m only hitting like 4-5 I have no idea what the problem could be
 

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Discussion Starter #3
Yes I checked most and now my car is hitting 15-20 psi out of no where and throwing a few codes like p0234 and p0171
 

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2010 Volkswagen Passat 2.0TSI
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P0234 is because you are running a higher boost than normal. P0171 is a vacuum leak.
 

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Discussion Starter #5
Thank you. But I don’t understand how I’m running higher boost with stock parts and any good ways to fix the leak?
 
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