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E85 Gauge w/ output for under $100

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Old Nov 27, 2016, 10:24 AM
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Originally Posted by evo8tanner
Wow I have been looking into doing my own content display recently and I'm glad that I stumbled upon this post. Thanks a lot I will be looking into this once I go FF with my aem infinity. Is that flex fuel sensor that you have linked on amazon the same one/place that you purchased yours?
If you're looking for all supplies in a kit already together I have one for sale in the classifieds.
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Old Nov 27, 2016, 11:25 AM
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I may have to take you up on that this coming weekend possibly. Reason for selling?
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Old Nov 27, 2016, 03:16 PM
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Originally Posted by evo8tanner
I may have to take you up on that this coming weekend possibly. Reason for selling?
Too lazy to install lol.
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Old Nov 27, 2016, 03:41 PM
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Ohhh got it, not going to go flex fuel anymore? Also have you uploaded the code onto the arduino or is it all untouched?
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Old Nov 27, 2016, 04:07 PM
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Also what do you think about an arduino 2560 mrboost? I have one laying around from an old project
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Old Nov 27, 2016, 05:20 PM
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Originally Posted by evo8tanner
Ohhh got it, not going to go flex fuel anymore? Also have you uploaded the code onto the arduino or is it all untouched?
All untouched. Currently on flex fuel, just not 100% interested in knowing my Ethanol content at this time.
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Old Nov 27, 2016, 06:06 PM
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Got it. How come you bought a second FF sensor? couldn't you have wired the display into your current one?
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Old Nov 27, 2016, 06:22 PM
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Originally Posted by evo8tanner
Got it. How come you bought a second FF sensor? couldn't you have wired the display into your current one?
I don't have a flex fuel sensor in my car. Not necessary to run e85.
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Old Nov 27, 2016, 06:50 PM
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I figured when you said you were on flex fuel that you meant you had a sensor setup and were tuned to use any fuel mixture. Yup I have a dual map too right now
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Old Nov 27, 2016, 11:18 PM
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So the green wire is spliced and has two inputs into the arduino and the pink wire is a separate wire coming straight from the arduino output into the ecu pin? Since this is for stock ecu do you know if an aem infinity will accept that "pink wire" output from the arduino? I read somewhere that people spliced the wire before the arduino to get the signal input for the ecu which may be an unneccesary step for thise setup/case. Sorry if this is confusing, I'm trying to visualize the setup and am a bit unfamiliar
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Old Nov 28, 2016, 03:57 PM
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Sorry I was confused/tired, lets try this again. So the green wire into the arduino is in Hz and is the pink wire from the arduino output 0-5v? I'd splice into the green before the arduino if I wanted Hz input for my ecu?
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Old Dec 4, 2016, 07:00 PM
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Thats awesome. Great idea!!
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Old Dec 5, 2016, 04:11 AM
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This is awesome!
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Old Dec 23, 2016, 09:03 PM
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Hey buddy on both of the resistors does it matter 1/4-1/2-1/8 Watts... which on to use,,
THANKS,,,,,
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Old Dec 25, 2016, 06:57 PM
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Originally Posted by evo8tanner
Sorry I was confused/tired, lets try this again. So the green wire into the arduino is in Hz and is the pink wire from the arduino output 0-5v? I'd splice into the green before the arduino if I wanted Hz input for my ecu?
the "green" is going to be your power / flex input wire. The flex input wire MUST be just like it shows, it you place the wire after the resistor, it will not function correctly. The "pink" outputs Hz, not volts
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