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I***8217;m so lost as to what could be going on here***8217;s a log from 3rd gear at 2k rpm to redline with stage 1+ mhd tune and 93 oct
 

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Please post the .csv. Also, you'll get more eyes on it by posting in the N54 forum on bimmerpost.

Edit: nevermind about the .csv. The fuel trims look like a nice big boost leak to me, but as to why it's not requesting any boost, beats me. Assuming you're not getting any codes. Have you verified you're not getting any codes? A big boost leak will trigger a 30FF underboost code that will put the car into no-boost mode and display a half-engine icon on the dashboard. I assume you're not posting logs when you have that condition.
 
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