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      12-22-2023, 07:02 PM   #7
SlowE92
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Drives: E92 2007 335i, E60 2008 535xi
Join Date: Sep 2023
Location: Salt Lake

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Quote:
Originally Posted by pwns View Post
That's sad to hear. What steps should I take to diagnose?

Car has around 150k km on it, but rebuilt engine 2k km ago...

Rebuilt but reused turbo I guess
I would check for boost leaks. Check Your diverters and connection from chargepipe and throttle body and intercooler. It says you're on the stock flash (Stage 0). Have you tried flashing a map and seeing if it changes? (stage 1 or 2)

Edit: change your vacuum lines too.
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2007 E92 335i - MHD, Turbo Technics 19T's
2008 E60 535XI - JB4
2010 E92 335i - JB4, Borg Warner EFR 8374
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