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      03-24-2024, 10:44 PM   #4075
Aplatosz
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Drives: 2018 BMW 340i Xdrive
Join Date: Mar 2024
Location: Connecticut, USA

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Misfires

Car is on a E50 blend with a DS25, Flowmax turbo, and 50/50 chargepipe WMI 59k miles
Was stopped at a gas station and when turned the car on got a drivetrain malfunction and flashing CEL, read the codes and gave me a few misfire codes on cylinder one, car had a very obvious misfire at idle but not so much once I gave it any gas, on the drive home was able to get a datalog and looked like it was running very very lean but had no timing corrections or knock, went I got home pulled the plugs and they all looked clean and oil free, didn't notice any irregular smoke from the exhuast, and also opened up the oil cap while it was running to check for smoking which it wasn't. Changed out plugs and still have the same issues, was thinking the lean afr could have messed something up but not showing any symptoms of a blown engine, thinking something to do with injectors may be the issue, datalog of that small pull is below.
https://www.bootmod3.net/log?id=65fb...b463058d0f1d7c
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