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Old 08-01-2012, 01:05 PM   #1
fastsupra
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Default E85 help!

I have been reading into E85 and have been very interested in possibly switching over to it but I have a couple of concerns. I am currently running the AEM EMS V2 and was wondering how I would go about making sure that when I fill up at the gas station that I am getting enough of a ethanol content to make sure it runs correctly because Ive read that the contents can vary.

Also, when I go to fill up at the station and I'm going from 93 to E85, how would I know Im getting enough ethanol to run my E85 map? In order for me to switch back and forth, I'm going to have my shop install me a knob that I can turn to go from my 93 map to my 93+meth and then E85.

My main concerns are mainly how to make sure Im running the correct octane for my E85 map and how I would go about switching between maps when I fill up. Should I hang my head in shame for not going the ProEfi route? Or will I be able to make E85 work with the AEM?

Thanks for the help!
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Old 08-02-2012, 01:32 AM   #2
pwpanas
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Default

Quote:
Originally Posted by fastsupra View Post
I have been reading into E85 and have been very interested in possibly switching over to it but I have a couple of concerns. I am currently running the AEM EMS V2 and was wondering how I would go about making sure that when I fill up at the gas station that I am getting enough of a ethanol content to make sure it runs correctly because Ive read that the contents can vary...
The better E85 systems use a sensor which dynamically determines the exact gasoline:methanol ratio, and auto-tunes appropriately
Quote:
Originally Posted by fastsupra View Post
...Also, when I go to fill up at the station and I'm going from 93 to E85, how would I know Im getting enough ethanol to run my E85 map?...
Again, the map needs to be dynamic, not static.
Quote:
Originally Posted by fastsupra View Post
...
In order for me to switch back and forth, I'm going to have my shop install me a knob that I can turn to go from my 93 map to my 93+meth and then E85.

My main concerns are mainly how to make sure Im running the correct octane for my E85 map and how I would go about switching between maps when I fill up. Should I hang my head in shame for not going the ProEfi route? Or will I be able to make E85 work with the AEM?

Thanks for the help!
I believe that the gasoline:ethanol sensor can work with the AEM v2.
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NB: Please consider posting any help requests in a new thread instead of asking me for help privately. About 99.9+% of the time, private help requests end up covering great information that could be very valuable to other forum members. If you have a good reason for needing the help request to be private, I'll consider it. If not, then why not give everyone else the opportunity to pitch in too, and/or learn from the information? Remember, there's no such thing as a dumb question. We're all here to help within this family of Supra owners.
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