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Old 06-05-2008, 06:19 PM   #1 (permalink)
EcoModding Lurker
Join Date: Jun 2008
Location: ohio
Posts: 41

The Civic - '99 Honda Civic
90 day: 40.41 mpg (US)
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SGII MPG Calculation

Does anyone know how the SGII calculates instant MPG? No injector pulse information runs through the OBDII so I know they dont use that. My best guess is using the fuel/air ratio and the engine rpm but I cant figure out an equation that would work.

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