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      01-05-2023, 05:59 PM   #5
TopJimmy
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Drives: 2023 M3 Comp xDrive
Join Date: Jul 2019
Location: Chester County, PA

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Could be an upper O2 sensor starting to go bad. If the AFR reading is off you'll get stutter at idle. You would need to use logging software to be sure. I'm only familiar with logging using Bootmod3.
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