Quote:
Originally Posted by mpg_numbers_guy
I wonder how the OEM Insight gauges compensated for lean burn? Maybe something can be tapped into to make the Scangauge work, some kind of custom xGauge maybe.
But at that point a MPGuino would be better as it's known to work.
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The factory gauges and MPGuino measure fuel use directly (injector pulse activity... I assume the factory gauge does the same), whereas the ScanGauge calculates it based on air consumption, at an assumed 14.7:1 ratio (or thereabouts).
Unfortunately, there's no way to add an x-gauge that calculates MPG in an engine that switches between lean burn and normal stoichiometric.
MPGuino is the way to go.