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      07-09-2019, 05:52 PM   #1
st-pierre
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N55 issues

Hey guys,

I've got an N55 2012 135i with Injen intake, catless downpipe and m performance exhaust and Cobb APV3.

When going to track days I been having issues when exiting turn under full throttle in 3rd gear.
Usually car goes in heavy Limp Mode and following codes appear.
P2EFE –
P2F04 –
P2F02 –
P2EE0 –
P2EF4 –
P2EED –

Yesterday after a few times clearing codes and heading back out I got a smaller limp mode and this code only came up.
P2C01 -

Can anyone tell me what that codes are ?

Switched maps a few time to see if it would change anything, but it didn't the only solution I found to delay the coding/limp mode was being light on the throttle and accelerate gradually at a very slow rate.

As of now I changed plugs to NGK 97506 gapped to 0.022 but that didn't change anything.

I've been reading around and as of now figured it could be coils, injectors, HPFP, or even that my tune would need to be revised, so before changing everything and not knowing if either its going to resolve my problem. Can someone who has had this issue help me out.
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      07-10-2019, 11:02 AM   #2
st-pierre
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Can anyone tell me what these codes are?
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      07-10-2019, 12:26 PM   #3
mfindigital
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2EFE: Random/Multiple Cylinder Misfire Detected

2EEO: Combustion misfiring, several cylinders: Fuel injection deactivation

from another thread
https://www.e90post.com/forums/showthread.php?t=1077458
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2011 Space Grey 135i, DCT MSport Suspension, M3 FSB, Berk Street Axle Back, MHD Stage 2+, VRSF Catless DP, VRSF 5" FMIC, VRSF LCP, BMS UCP.
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      07-10-2019, 03:00 PM   #4
st-pierre
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Quote:
Originally Posted by mfindigital View Post
2EFE: Random/Multiple Cylinder Misfire Detected

2EEO: Combustion misfiring, several cylinders: Fuel injection deactivation

from another thread
https://www.e90post.com/forums/showthread.php?t=1077458
Thanks saw that thread even went through the pdf diagnostics fault codes but unfortunately not all the codes were there.
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      07-10-2019, 03:27 PM   #5
dtla1
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I'm going to say HPFP. Here are some of the codes I got, replaced the HPFP and these all went and stayed away.
Attached Images
  
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      07-10-2019, 03:45 PM   #6
st-pierre
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Thanks I figured hpfp was my best bet. Unfortunately mine was produced before 03/2012 so its the most expensive.
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