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GoGogebic · 08-18-2011, 10:51 PM

I have a 09 Honda Fit which has aN avg and instant fuel mileage display built in. Its usually off by 6-7 mpg. It says I'm getting an average mpg of 40, but really I'm only getting 33mpg. I'm building a car called the Gogebic XP and I want to build in a mpg tracking system. Can you guys give me a brief description of the different technologies or techniques to monitor mpg and which after market devices are best. For example, do systems measure fuel injection pulses per mile traveled or is it just a program based on the O2 sensor. Thanks,

Please provide links if you can.

08-18-2011, 10:51 PM	#1 (permalink)
GoGogebic EcoModding Lurker Join Date: Jul 2011 Location: wisconsin Posts: 36 Thanks: 6 Thanked 2 Times in 1 Post	Factory Avg Mpg Gauge isn't even close! I have a 09 Honda Fit which has aN avg and instant fuel mileage display built in. Its usually off by 6-7 mpg. It says I'm getting an average mpg of 40, but really I'm only getting 33mpg. I'm building a car called the Gogebic XP and I want to build in a mpg tracking system. Can you guys give me a brief description of the different technologies or techniques to monitor mpg and which after market devices are best. For example, do systems measure fuel injection pulses per mile traveled or is it just a program based on the O2 sensor. Thanks, Please provide links if you can.