Not hitting boost target. $100 to whoever figures it out.

550l · 06-30-2022, 02:06 PM

I have a 2015 550i
Just replaced every air related sensor, Walnut blast, new Injectors, coils, plugs, filters, boost solenoids, smoke pressure test, and a full fluid flush. Still not hitting boost target. And have a low rpm sputter. It's been to one shop and they could not figure it out. I'm taking it to another this weekend but FFS. What else could it be?

Here's a data log of a WOT pull:
https://www.bootmod3.net/log?id=62bd...0b43633c0b9e96

Here is a data log of a low RPM sputter:
https://www.bootmod3.net/log?id=62bd...0b4360282cf723

Any help is appreciated.

Aussie_550i · 07-01-2022, 01:22 AM

What condition are your divertor valves in?

550l · 07-01-2022, 10:18 AM

Quote:

Originally Posted by Aussie_550i

What condition are your divertor valves in?

There are no diverter valves on the TU, it's all electronically controlled.

burro_blasta · 07-02-2022, 10:16 AM

Any codes?

550l · 07-03-2022, 05:54 PM

Quote:

Originally Posted by burro_blasta

Any codes?

No codes, no shadow codes either.

06-30-2022, 02:06 PM	#1
550l Private 1 Rep 55 Posts Drives: 2016 F10 550i x-drive Join Date: Sep 2020 Location: Minneapolis iTrader: (0)	Not hitting boost target. $100 to whoever figures it out. I have a 2015 550i Just replaced every air related sensor, Walnut blast, new Injectors, coils, plugs, filters, boost solenoids, smoke pressure test, and a full fluid flush. Still not hitting boost target. And have a low rpm sputter. It's been to one shop and they could not figure it out. I'm taking it to another this weekend but FFS. What else could it be? Here's a data log of a WOT pull: https://www.bootmod3.net/log?id=62bd...0b43633c0b9e96 Here is a data log of a low RPM sputter: https://www.bootmod3.net/log?id=62bd...0b4360282cf723 Any help is appreciated.
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07-01-2022, 01:22 AM	#2
Aussie_550i Private 12 Rep 80 Posts Drives: 2011 550i, 2017 430i Join Date: Nov 2014 Location: Melbourne, Australia iTrader: (1)	What condition are your divertor valves in?
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07-02-2022, 10:16 AM	#4
burro_blasta Lieutenant 130 Rep 441 Posts Drives: 2013 535 M Sport Join Date: Sep 2018 Location: CO iTrader: (0)	Any codes? __________________ 2013 535xi M Sport (PWG) // PS2 // Spool fx150 // MHD // xHP // FTP Inlet // FBO: AR HF DP, Wagner IC, BMS Intake, VRSF CP
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