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Old 02-02-2019, 10:36 AM   #12 (permalink)
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Join Date: Dec 2011
Location: Vermont
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Gaptooth (retired) - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 54.26 mpg (US)

Such Fit - '07 Honda Fit Sport
90 day: 41.27 mpg (US)

Connect - '15 Ford Transit Connect XL
90 day: 25.19 mpg (US)

K-sight - '00 Honda K-sight
Team Honda
90 day: 45.06 mpg (US)
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Redpoint5, it's common in Honda Insights for the IMA system to function weirdly if the engine bay grounds are poor. It won't necessarily throw a CEL either; sometimes you'll just see the battery level do a "recalibration" or the IMA light come on instead. Sometimes lean burn functions poorly, with a rough or stumbling engine. I agree with you 100% that the cables themselves were not the source of the energy loss, but bad grounds can have a wide variety of symptoms which computers may not recognize.
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