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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 MAKE MY CAR GREAT AGAIN! (by checking my log, please)



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      06-18-2016, 02:58 PM   #1
wren57
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HELP MAKE MY CAR GREAT AGAIN! (by checking my log, please)

http://datazap.me/u/wren57/log-14662...78&tmax=605.07

Car has 112k miles, on original turbos, boost solenoids, and LPFP. HPFP replaced 50k miles ago.

MHD stage 2 93 oct tune v6.1

ETS 5" IC, AR DPs, ER CP, Tial BOV, AFE intake

New plugs, coils, VCG, PCV valve, vent hose, 1/4" BOV hose to intake manifold, vacuum lines, fresh walnut blast

Not a fan of the timing corrections. Threw shadow codes 29F4 and 29F5. Appears I have a boost leak, too.

*Also should note, using Shell 93 gas, it's probably a month or so old, and a bottle of techron injector cleaner.

Last edited by wren57; 06-18-2016 at 05:14 PM..
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      06-18-2016, 04:10 PM   #2
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Looks like you may need new turbos, if not boost leaks.

Dont you get a 30ff?
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      06-18-2016, 04:19 PM   #3
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Quote:
Originally Posted by Sgop335 View Post
Looks like you may need new turbos, if not boost leaks.

Dont you get a 30ff?
No 30ff.

Turbos are sirening a bit, especially when oil is cold. And there is some exhaust smoke at idle at times. Just trying to make sure the rest of the system is up to speed before tackling turbos. Not looking forward to that job at all.
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      06-18-2016, 04:25 PM   #4
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Quote:
Originally Posted by wren57
Quote:
Originally Posted by Sgop335 View Post
Looks like you may need new turbos, if not boost leaks.

Dont you get a 30ff?
No 30ff.

Turbos are sirening a bit, especially when oil is cold. And there is some exhaust smoke at idle at times. Just trying to make sure the rest of the system is up to speed before tackling turbos. Not looking forward to that job at all.
Vacuum test your lines going from vacuum pump all the way to actuators and vacuum test the actuators themselves. Also test your boost solenoids. Seems like something is less than up to par in your boost control system but I wouldn't start blaming the turbos off the bat without testing the other things I mentioned. There are youtube videos in how to test the solenoids.
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      06-18-2016, 04:29 PM   #5
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Quote:
Originally Posted by wren57 View Post
No 30ff.

Turbos are sirening a bit, especially when oil is cold. And there is some exhaust smoke at idle at times. Just trying to make sure the rest of the system is up to speed before tackling turbos. Not looking forward to that job at all.
Surprising, Perhaps a lone 3rd gear run would trigger 30ff. Your boost is way off target.

Boost and vacuum leaks could be other areas or boost solenoids, altho 112k mi turbos, those poor wgs
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      06-18-2016, 04:36 PM   #6
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My psi at idle is about -8.5, so I think the vacuum system is good. Just replaced all the lines with 4mm 3M silicone lines.
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      06-18-2016, 04:53 PM   #7
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Quote:
Originally Posted by wren57 View Post
My psi at idle is about -8.5, so I think the vacuum system is good. Just replaced all the lines with 4mm 3M silicone lines.
Your acuum system may be fine, just want to mention that engine vacuum is not necessarily an indicator of the "other" vacuum system which runs with a vacuum pump.
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      06-18-2016, 08:09 PM   #8
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Quote:
Originally Posted by wren57
My psi at idle is about -8.5, so I think the vacuum system is good. Just replaced all the lines with 4mm 3M silicone lines.
Test your actuators. Vacuum on your manifold is NOT what I am talking about. You are confusing manifold vacuum on your gauge with boost control vacuum from vacuum pump, TOTALLY DIFFERENT CIRCUITS AND FUNCTIONS. You could have a broken nipple or crack on a vacuum tank, a leaky actuator, a leaky boost solenoid. Just trying to help.
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      06-19-2016, 11:40 AM   #9
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