91 Octane

65 degrees outside temp

weird AFR spike and suspect boost leak. Downpipe charge pipe.

First log is 4th gear second log is 3rd gear. Tried to drive 80%throttle and shift between 3rd and 4th and car went into limp mode.

2011 S4; IE Stage 1; 1 gal E85; HX fully bled IAT 50C at end of 3rd gear pull