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      08-10-2022, 08:25 PM   #35
Dawgz
2022 M4 Comp Xdrive
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Drives: 2022 M4 Comp Xdrive
Join Date: Feb 2019
Location: USA

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Tested the revision that Paul sent, no more knocks during the pull. Went from 2k rpm in 3rd all the way to 7k, shifted to 4th went all the way to 7k shifted to 5th. No knocks. AFRs seem a little better but still a bit lean on the lower RPMs when on WOT.

Also another new thing that i noticed was the car is registering knock on the data logger at lower RPMs, like when im getting off a traffic light, touch the pedal a bit to have some engine load and the AFRs are getting as lean as mid 15s before causing knock to register. Was scary just driving home.

I've sent Paul the note - hopefully he can sort this out also.
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