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Old 01-15-2008, 02:34 PM   #1 (permalink)
jazzie604
Turbo gas guzzler
 
Join Date: Dec 2007
Location: Lexington
Posts: 67

grocery getter - '03 Mitsu Evolution
90 day: 17.55 mpg (US)
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question about scanguage - how to make an OBD2 tool do MPG calcs

I was wondering if someone can help me figure out what the scanguage uses to display gas mileage, etc. I have a datalogging program that i can use when Im racing my car, and it gives me basically the full OBDII set of info (and then some). I was wondering if I could use this information, then modify an output in some way to let me know instantaneous info like the scan guage. This wont be as easy to look at as the scan guage, but it would be free, so thats always good. I would think that it may be something as simple as engine load( a calculation based on airflow v. engine rpm) against vehicle speed. Any thoughts?

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