alch%

What Sensor on your car does the NGAUGE use for Reporting the ALCH Percentage ? I think I need to Replace a Sensor or something because My NGAUGE is Reading 40+ Alch % on 93 Octane And its causing my Air Fuel Ratio to go down and my Gas Mileage Because its like my Car thinks im running E85 so MY...

I've been using 93 pump gas since I got the tune and initially AFR at idle was 13.5-13.8, and 11.4 or so at WOT. Now it is at 12.7 at idle and 10.4 at WOT. Still using 93 oct pump gas and alcohol % is showing 32%. Anybody else get this? What'd you do? Edit: Solution on page 2.