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      12-20-2015, 11:08 PM   #18
wildacex187
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Drives: 335xi stock
Join Date: Jan 2014
Location: nyc

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Quote:
Originally Posted by Sapphire135i View Post
check the two black looking canisters on the left side of the engine (passenger) there are 4 vacuum lines that go there on top and on bottom make sure the nipples aren't broken off. this is very common.
Quote:
Originally Posted by lecaf View Post
If you're not getting any boost, I would definitely check the vac lines to the wastegate, and test your boost solenoids...

Even with bad turbos (where wastegate is not shutting properly), you should still be able build some boost, just very little.

If you're not building ANY boost, I can only think that the wastegates are not even trying to shut.

it was the vacuum lines under the engine cover. make sure to change them if you're over 50k miles.

here's us messing around looking for it lol


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