Who makes an Aftermarket MPG Computer? - Page 2 - Fuelly Forums

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Old 06-25-2008, 01:20 PM   #11
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Well, when the Dashdyno is calibrated it predicts my weekly tank fill, which is usually very close unless I fill up at a pump that rips me off with bad gas!

Currently, my Dashdyno's performance 0-60 screen didn't work well. Gotta email them for a fix!
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Old 06-25-2008, 01:31 PM   #12
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If you will go to ebay and do a search on scan gauge it will bring up all the brands that anyone on there has to offer.
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Old 06-25-2008, 01:40 PM   #13
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Setting the Scangauge to Hybrid in the fuel menu keeps it alive during EOC / FAS.

I recommend it.
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Old 06-25-2008, 01:51 PM   #14
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Are there any pre-OBD2 fuel monitors? I think SuperMID may be, but I'm not sure, and I can't seem to find a good link for it.
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Old 06-25-2008, 03:28 PM   #15
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There are some pre-OBDII mileage monitors but they may all be DIY electronics projects. There's a link in my sig (do I sound like a broken record?) that is very easy and not too expensive (<$40) that can at least easily show you fuel rate. It's not combined with speed so it won't show MPG, but right at the top of it I recently added links to two threads about MPG monitors based on similar technology.
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Old 06-25-2008, 06:28 PM   #16
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Quote:
Originally Posted by JESSE69 View Post
when the Dashdyno is calibrated it predicts my weekly tank fill, which is usually very close unless I fill up at a pump that rips me off with bad gas!
Thanks for mentioning that.

I think the OBD2 approach (what's used by DashDyno and Scanguage) probably works well for most people most of the time. But I think there are certain circumstances where errors might creep in. I also think certain types of errors might tend to balance each other, which means you won't notice them when you're doing your calibration on a strictly per-tank basis (which is the main means of calibration that is typically used).

I don't want to overstate the problem, and I think there is no perfect solution that is superior. I just think it's good to be aware of this possible limitation.
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