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BMW 3-Series (E90 E92) Forum
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30ED & 30EF Codes - FBO N54
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11-13-2021, 12:51 AM | #1 |
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30ED & 30EF Codes - FBO N54
Hi all,
I have a FBO n54, and car is running really rough now with misfires. ![]() Car has new coils but not plugs, running index 8 & 9 injectors. Where should I start? |
11-13-2021, 01:31 AM | #2 |
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11-13-2021, 01:34 AM | #3 |
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11-13-2021, 01:59 AM | #4 |
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11-13-2021, 03:05 AM | #5 | |
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Quote:
It doesn't idle or cruise normal, heaps of misfires on idle and cruise, a lot when accelerating. It started off as just misfiring on cold starts for about 30 seconds or so, and then started doing it when idling. |
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11-15-2021, 01:57 PM | #7 |
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Drives: 09 E92 335i 6MT
Join Date: Nov 2020
Location: Westminster, Maryland
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+1. Especially if it started with cold starts.
Pull plugs, bet you 1 & 3 and/or surrounding plugs are blacked out.
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09 E92 335i 6MT / Alpine White / Coral Red / VRSF 7.5" / VRSF DCI / VRSF Catless Downpipes / VTT Charge Pipe / Turbosmart RacePort Gen V / RB OEM Billet Turbos / CD919 Custom Tune / Bilstein PSS9s
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cold start, misfire, superknock |
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