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Old 08-07-2017, 09:25 AM   #1 (permalink)
JockoT
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Join Date: Jun 2017
Location: Scotland
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All That Jazz - '06 Honda Jazz i-DSI S
Team Honda
90 day: 48.72 mpg (US)
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Accelerating for good fuel consumption.

I am struggling with trying to get the best out of my little engine under acceleration. I seems that no matter what I do I find that the instantaneous figure drops down into the low 20's (or lower) as soon as I open the throttle.
I have tried monitoring the Throttle Position Sensor, but the values the ScanGauge show seem to jump all over the place. It varies between 12 and 85 but trying to keep it up near 85 without reaching 85 is almost impossible.
My question is, can I use the loop sensor? If I keep the system running in Closed Loop, with the throttle as wide open as I can to keep it in Closed Loop, is this the best acceleration for fuel economy?
I do not allow the revs to exceed 3000, trying to keep them around the 2500 mark. Should I rev a bit higher, so that when I change gear the revs drop to nearer the point of best Brake Specific Fuel Consumption, instead of below it?

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