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Old 08-26-2008, 10:29 AM   #7 (permalink)
EcoModding Lurker
Join Date: Jul 2008
Location: Novi, MI
Posts: 16

Tupper - '97 Saturn SW2
90 day: 37.52 mpg (US)
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The scanguage uses engine load to calculate fuel economy. Unfortunately it does not look at injector pulse width and VSS to calculate which is much more accurate. Engine load comes from MAP, IAT, and RPM/TPS. There may be a few more variables involved but that's the gist.

Hopefully Diesel_john's tool turns out to be a winner. Do you have to tap the injector wires John?
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