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Title: AVR based fuel consumption gauge project Post by: solutions on May 09, 2012, 06:59:07 06:59 I found this while looking for the SAE J1979 spec, which I haven't found yet.
A Circuit Cellar (October 2005) project that uses General Motors CAN bus (OBD-II) info to compute MPG using an AVR. Has schematics and code link. http://www.lightner.net/lightner/bruce/Lightner-183.pdf |