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35% of fuel economy can be attributed to your driving habits. Use ScanGaugeKR to maximize your driving efficiency.

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Does anyone else have a problem with the accuracy of the scanguage?

My scanguage says that I am getting 6.5mpg but when I do the math the old fashioned way I get 6.1mpg. Anyone else having this issue? I wonder if I did something wrong with the setup

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The scan gauge can only read what your ECM on the engine is telling it

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You can tweak this to make it more accurate. There are settings to adjust the fuel consumption. It's in the manual how to do it. I can't recall exactly off the top of my head and I do recall that when I was trying to adjust it it seemed to be different with each tank so I gave up.

One of these days I'm going to write down the gallons used per my scan gauge each time I fill up and then do this for a month and average out the numbers that way and see if it brings it closer to accurate. I've just learned about how off it is and make a mental adjustment but I believe this change will also help adjust the real-time readout.

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Chris,

The ScanGauge does read exactly what the ECM is putting out. You can adjust it by going to the main menu. Press "MORE", then press "SETUP", then press the upper left button one time. It should now say "ADV SETTINGS". Press "EDIT", then press the upper left button 5 times. The screen should say "FUEL ADJ" on top and 0.0% on the bottom. Adjust the bottom percentage about 3%, run four tanks through, and check it again. You can adjust it as much as you want. Just go back to them win menu when you're done.

Since your ECM is just a giant calculator, .4mpg accuracy is very good. Most are off 1.0 mpg or more. I tell drivers you can tune it in to about .3mpg. Very few engines are perfectly accurate all the time.

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Thank you for posting how to adjust it!!!

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the best way to check your fuel mileage is by fuel gauges.scan gauge kr is a good guide,but not accurate like fuel gauges.you can send me the cheque now kevin.

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I don't have the KR gauge, but the original Scangauge D that suits my needs and is cheaper. I have the same problem with mpg. As was stated, the mpg can be adjusted in the settings. Stock, mine was about .6 mpg high. It is dead on now, with only about 1-2 gallons difference when I fill up compared to what it says for fuel I have used. I leave it to my spreadsheets to give the the absolute best representation of mpg, for each fill and rolling average for the month.

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Chris Caldwell will be eternally grateful.
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