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View Full Version : 1.8t stutters around 2500-3000 rpms



iimillah14
02-02-2017, 09:25 AM
I just got my Audi a4 1.8t and put a new turbo and throttle body in, when I get to 2500 in every gear it stutters.. And at idle my boost gauge says -20? Help.

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2000zxt
02-02-2017, 09:32 AM
Sounds like a pre-tb vacuum leak. Did you check over the PCV system?, lots of old brittle plastic to crack down there, I would replace all of it. Another common problem is the T to the BPV being torn. If you didnt do a boost leak check after you fit the new turbo, do that and you'll more than likely find your problem.

iimillah14
02-03-2017, 05:07 PM
Okay thanks!

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