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mtgeekman · 12-29-2009, 06:31 PM

The reason the numbers between the insights FCD and the Scangauge don't match up is because of the lean burn.

The scan gauge doesn't monitor weather you are in lean burn or not. so it bases its calculations on a air/fuel ratio of 14.7:1 and assumes that this number does not change.

12-29-2009, 06:31 PM	#18 (permalink)
mtgeekman EcoModding Lurker Join Date: May 2008 Location: Helena Mt Posts: 37 01 Insight - '01 Honda Insight DX Team Honda 90 day: 67.82 mpg (US) Thanks: 2 Thanked 1 Time in 1 Post	The reason the numbers between the insights FCD and the Scangauge don't match up is because of the lean burn. The scan gauge doesn't monitor weather you are in lean burn or not. so it bases its calculations on a air/fuel ratio of 14.7:1 and assumes that this number does not change. Last edited by mtgeekman; 12-29-2009 at 07:26 PM..