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Old 09-28-2014, 10:46 PM   #1 (permalink)
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displacement on demand and MPG apps

I am currently using Torque app but it doesnt work for measuring MPG due to my car having MDS. Are there any apps or tools that accurately measure MPG on vehicles like mine? I have searched but havn't found anything useful.

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Old 09-28-2014, 11:11 PM   #2 (permalink)
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Id be interested in this too. I know the egr reduces displacement, vtec monkeys around with it as well as the valvetrain on hybrids. On other cars with VCM at least the early ones had a dash light to show.
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Old 09-28-2014, 11:46 PM   #3 (permalink)
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The problem isn't torque, its the car. The OBD2 port does not have access to all the sensors in the car, which is what is causing it to not read out a MPG. As far as I know, if one app doesn't work, especially one as well known one like torque, you're going to be hard pressed to find one that does.

I would recommend seeing if you can get a MPguino
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Old 09-29-2014, 07:37 PM   #4 (permalink)
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Yeah I know the car is the problem.Torque works great. I was just curious if there was an app or tool that can correctly calculate MPG for vehicles like this. There must be something because the car manufactures are able to do it.
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Old 09-29-2014, 09:20 PM   #5 (permalink)
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Quote:
Originally Posted by Rango318 View Post
I would recommend seeing if you can get a MPguino
MPGuino only connects to one injector. If that injector shuts down during DOD, you'll get a zero reading. If that connector doesn't shut down, you'll get the same reading as an OBD scanner.

You'd need to build and Arduino that connects to every injector (or each independently controlled injector bank/ pair depending on how the DOD system is set up) and sends the averaged signal to an MPGuino.

If there's a 'fuel economy' signal in the loom, MPGuino can be used to tap directly into that. Most modern European cars have that signal available at the instrument cluster, even if they didn't come with the display stock.

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