Quote:
Originally Posted by akashic
The fuel readings are driving me nuts. As I suspected before I got the ScanGauge, my tank measures differently at the top, middle, and bottom. After I first calibrated it at 1/4 tank as the manual suggested, it was dead accurate at 1/4 tank... But at fill-up, it was WAY off. ...
And the real problem is that it's obviously giving screwy MPG readings throughout the week. Last week the SG was off by 15% at fill-up. The other day after my first trip, the Trip Average differed from the *calculated* trip average (from Trip Miles divided by Trip Gallons) by about 15% in the other direction. WTF?!!
Suggestions?
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First off, I've pretty much stopped thinking of a fuel gauge as a "gauge". They're not accurate, and I don't think they ever were intended to be accurate.
And then...
I've been driving my Civic HX with ScanGauge for about a month now. Every now and then it goes kablooie. It will say that I've gone thousands of miles in a short time or some other ridiculous things. It looks like somehow the data got corrupted.
I've been able to reduce the frequency of this happening by waiting at least 3 seconds after an engine shutdown for coasting, before I key the ignition back on again. The SG saves its data after a shutdown and I think that it gets messed up when it's saving data at the same time the car's computer is rebooting.