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Old 06-02-2011, 10:31 AM   #11 (permalink)
mcmancuso
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Join Date: Mar 2010
Location: TN-USA
Posts: 61

Green Metro - '99 Chevrolet Metro LSi Sedan
90 day: 32.78 mpg (US)

Metro Vert - '91 Geo Metro LSi Convertible
90 day: 50.52 mpg (US)
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OBD 2 does not actually output true MPG since it does not monitor injector pulses, it just infers it via several engine statistics, you could look up what is being used, and set up a system to monitor it yourself. It uses the MAF along with several other sensors to determine engine load.

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