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      09-17-2021, 05:10 PM   #1
noice135
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Drives: 2011 135i
Join Date: Sep 2021
Location: pnw

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N55 stalling at start, not hitting target boost

Hey guys,

I currently own a 2011 135i DCT.

FBO
wedge tuned
stage 1 pure turbo
91oct tune

I am having the weirdest trouble with this car I need some help!

car has 125k miles

It started off by stalling on me on a cold start, I put the car into gear, and when I reached a stop, it died. I started it back up and drove just fine.

Later that day, I went to turn it on and it stalled again right after turning it on.

I did some data logs and to be completely honest I have no idea what I am looking at, but there is some MAJOR timing corrections, I am not hitting my boost target and the car just seems to stop and drive funky. I don't know what to do, I called BMW and they think its a boost leak, or a HPFP issue.

However the fuel rail pressure seems fine.

this is a 3rd gear pull
https://datazap.me/u/alxsantan/log-1...30-31-32-33-34

what do you guys think?
Appreciate 0