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      02-01-2023, 02:31 AM   #1
Christianc288
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N54 Missfire

Changed spark plugs, ignition coils, and fuel injectors, Car still missfires around 14psi. Probably ovaled out injector bore???
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      02-07-2023, 09:50 AM   #2
BoostleakTV
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Post a log
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      02-07-2023, 11:55 AM   #3
Christianc288
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this is from december car still cant pull without missfiring, just been driving it regularly and missfire never pops up
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      02-07-2023, 03:35 PM   #4
BoostleakTV
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Need the actual log file. Grab it and throw it on datazap and post the link.
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      02-13-2023, 11:35 AM   #5
Christianc288
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https://datazap.me/u/christianc288/b...=0&data=3-5-21
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      02-19-2023, 01:12 PM   #6
Grimm5698
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What plugs are you running, also what plug gap?
Might just be the gap on the plugs are off a bit.
Also what coil packs did you get?
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      02-19-2023, 02:29 PM   #7
Christianc288
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Preciscion race work ignition coils
ngk 2step colder spark plugs gapped .22
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      03-21-2023, 01:33 PM   #8
PRTSB1M
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Have you pulled the plugs to check if they are fouling from being too cold? I run B58 coils and plugs on my N54 with no issues.

https://bmwtuning.co/bmw-n54-spark-plugs-guide/

You also might want to double check that your gap is actually closer to .022" than .22"

logs running the B58 coils/plugs: https://datazap.me/u/prtsb1m/v91plus...og=0&data=3-20

Last edited by PRTSB1M; 03-21-2023 at 10:12 PM..
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      03-21-2023, 09:20 PM   #9
Petro135
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Quote:
Originally Posted by Christianc288 View Post
Preciscion race work ignition coils
ngk 2step colder spark plugs gapped .22
Drop the gap down to .020 or even .018 and switch the coils around to see if Misfire follows. My older pr coils were solid whole time I owned them but I hear complaints lately and most are relatively new
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