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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Many fault codes Cobb Accessport v3



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      10-12-2016, 12:52 PM   #1
slim_n54
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Many fault codes Cobb Accessport v3

Running Stage 1 Aggressive for about 4 months - 10' n54 335i MSport. New spark plugs 2k miles ago. Mods: M performance exhaust, cPe intake, cPe aluminum chargepipe. Was only getting the fuel pump codes until I just looked at the troubleshooting...
Codes are as follows:
ECU
P2AAF
P2E1D
P29D2
P2B28
H2AAF

I was previously told to ignore the fuel pump codes as they appear using the Accessport, however, now that the others are showing up I wanted to get some confirmation. Two of them are cylinder 6 misfire and burning codes which worries me as the plugs were recently changed. Packs possibly? Anyone have any advice? Looked at a list of N54 fault codes and wasn't able to find the exact numbers.

Thank you!
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      10-27-2016, 04:24 PM   #2
Team503
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Swap the coils from 6 to 1 and vice versa, clear the codes, and see if the codes follow the coil pack. If they do, bad coil pack. If they don't... uh oh. Beyond me sir, that's when I call my mechanic friends.
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      10-27-2016, 07:36 PM   #3
Donutz
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I don't have any fuel pump codes. 2008 N54, FBO, stage 2+ sport. Not sure why you were told to ignore the code. I know a number of people running Cobb and none of them have fuel pump codes.

Moving coil packs around will help you identify if they are the source of your misfire. I wouldn't recommend ignoring that fuel pump code though.
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