BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)


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      10-13-2018, 05:40 PM   #1
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Drives: Silver 135 DCT
Join Date: Sep 2015
Location: Williamsport, PA

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2012 BMW 135i  [0.00]
N55 starts then dies

I have been having this issue for a month now and I have tried everything I could but now I need help. Just as the title says the car will start up idle for a little bit then just die. No codes either. Some times it will start and idle fine but as soon as there is a load on the engine, like revving or driving, it will misfire then die. I replaced the HPFP twice, the EKP, tried jumping the LPFP and checked the two fuses for the pump and nothing is helping.

My car have a jb4, e85 backend, cat les, and has a stage 2 lpfp.

Any guidance or advice is much appreciated!
TiAg n55 DCT - FBO, suspension stuff, some aero
Mineral Grey X1 - baby seat, wife mod
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      10-16-2018, 10:58 AM   #2
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Drives: 2010 135i
Join Date: Sep 2018
Location: USA

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Bump for ya, hope you got it figured out already.
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