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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > help please! no boost



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      04-02-2016, 03:51 PM   #1
kyoungjr17
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hello all so I recently installed Raceland kitties, a vrsf 5" stepped intercooler and vrsf inlets. so I finally started her up and took her for a spin today and she will not build boost. most I've gotten is .2 psi. I've checked every possible place for a boost leak and can not seem to figure it out. everything is hooked up and it runs great just will not boost. there are no codes or skips or anything oh and I'm running cobb stage 2+ Ots map. please anything will help!

solution found: front turbo vacuum line on waste gates had a Crack. just replaced it and it runs like a charm
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      04-02-2016, 05:03 PM   #2
Flex68
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Can you list what you have gone over ???
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      04-02-2016, 05:19 PM   #3
kyoungjr17
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checked both inlets, chargepipe connections, all fmic piping, all vacuum lines. I'm the process of changing to lines to the canisters. maybe waste gates stuck open?
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      04-02-2016, 05:23 PM   #4
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Quote:
Originally Posted by kyoungjr17
checked both inlets, chargepipe connections, all fmic piping, all vacuum lines. I'm the process of changing to lines to the canisters. maybe waste gates stuck open?
The band clamps for the dp's are probably binding up the wastegate
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      04-02-2016, 05:25 PM   #5
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move the power steering rack and adjust them? looks like my rear inlet is a little collapsed at the bend where it meets the turbo. idk if that makes a difference either
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      04-02-2016, 05:30 PM   #6
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Throwing any codes ?
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      04-02-2016, 05:31 PM   #7
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Quote:
Originally Posted by kyoungjr17 View Post
move the power steering rack and adjust them? looks like my rear inlet is a little collapsed at the bend where it meets the turbo. idk if that makes a difference either

It would but depends how collapsed
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      04-02-2016, 05:32 PM   #8
kyoungjr17
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no codes and it looks like it's just a little caved in, in the throat. I drove it WOT and got .2 boost. sits at -12 at idle
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