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Converting Prius to a FlexFuel hybrid.

Discussion in 'Gen 3 Prius Accessories and Modifications' started by TeURaS, Oct 7, 2017.

  1. TeURaS

    TeURaS Junior Member

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    Hello
    I have used E85 for couple of years in many different cars. I have Converted them using eFlexFuel conversion kit. eFlexFuel is developed and manufactured in Finland and it has passed Finnish government laboratory tests and is legal to use. Now I am going to convert my ZVW30 Prius with it. The question is that where can I find Prius fuel line schematics? I need to find a good position for the ethanol sensor.
     
  2. bisco

    bisco cookie crumbler

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    welcome!
    i would imagine in the service manual at toyota technical information.com
     
  3. TeURaS

    TeURaS Junior Member

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    Well I have to register and it costs me money. If there is someone who has this information already it would be nice.
     
  4. bisco

    bisco cookie crumbler

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    i thought someone else in finland converted their car, but it may have been to natural gas or something.
     
  5. TeURaS

    TeURaS Junior Member

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    Natural gas convertion is more costly and in Finland you must pay special tax for gas and diesel cars...
     
  6. Jarkko

    Jarkko Junior Member

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    Here is the cousin of the ethanol Prius mentioned above (or maybe it's the same car - I do not know):
    en.bsr.se/read-more/ethanol-hybrid
    (link broken as I do not have enough posts).

    Teuras, please keep us informed how it works when it gets colder..
     
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  7. TeURaS

    TeURaS Junior Member

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    Here is a Cold start video from my previous car. Citroen C5 V6. I have had 5 eFlexFuel Converted cars and all of them work really well when its cold.
     
    #7 TeURaS, Oct 8, 2017
    Last edited: Oct 8, 2017
  8. TeURaS

    TeURaS Junior Member

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    I know this car. It was converted by reprogramming the ECU not using a conversion kit.
    eFlexFuel concept is simple, yet complicated and clever. The kit is connected to the cars injectors and it has a ethanol sensor what is connected to the fuel line. The ethanol sensor reads the absolute amount of ethanol in your fuel so you can use regular gasoline and E85 and mix them as you want. The eFlexFuel unit keeps the injectors open longer based on the ethanol content in your fuel line. Basically it just compensates the smaller energy content of E85. This was the simple explanation that I could translate from Finnish to English =).

    P.S Jarkko You can buy eFlexFuel from Motonet from Finland.
     
  9. Jarkko

    Jarkko Junior Member

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    I just wish someone made an extra fuel tank for Prius+ (7-seater). Going to gas stations so often is one of the biggest annoyances of the car. With ethanol that would be even worse. So plugin conversion would be my thing :)
     
  10. TeURaS

    TeURaS Junior Member

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    Plug-in conversion 7000-10000€. Ethanol Conversion 300€....
     
  11. bisco

    bisco cookie crumbler

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    are they selling the plug in pacifica there?
     
  12. TeURaS

    TeURaS Junior Member

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    Nope. Chrysler, Chevrolet and Dodge importing to Europe ended many years ago because they did not sell them enough.
     
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  13. TeURaS

    TeURaS Junior Member

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    Now its done! My Prius is now FlexFuel Hybrid! Pictures taken during the installation and after installation. It takes a real Toyota guru to know where the eFlexFuel kit is located. =) IMG_20171011_165526.jpg IMG_20171011_183810.jpg
     
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  14. Grit

    Grit Senior Member

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    Interested to know how how car will drive.
     
  15. TeURaS

    TeURaS Junior Member

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    I will be updating my FlexFuel Hybrid journey briefly. I had almost full tank 95E10 but managed to put in 4-5 liters E85 and now the ethanol sensor indicates 15% ethanol content in my fuel tank. Tomorrow I have long journey so after that I will be filling up with E85 so we will see what the ethanol % will be after that =).
     
  16. sfv41901

    sfv41901 Masta S

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    Subscribed for the results


    iPhone ?
     
  17. riceroni87

    riceroni87 Senior Member

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    I think the member was referencing that with ethanol, you will need to fill up even more so that ethanol doesn’t give you the range that gasoline will give you. Example is my truck is flex fuel equipped. I get about 9 miles per gallon vs 13-15 on gas.


    iPhone ? Pro
     
  18. TeURaS

    TeURaS Junior Member

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    The idea is not to get the Same MPG but the idea is to get the same distance, but cheaper. Who cares, if you have poor MPG but if you can get 1000 Miles with less money isn't that the idea?
     
  19. riceroni87

    riceroni87 Senior Member

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    For you yes. The other guy was trying not to make more stops than he has to. That’s the difference. Hence why he was referencing the plug in option.


    iPhone ? Pro
     
  20. TeURaS

    TeURaS Junior Member

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    Yes. But if your plug-in conversion costs same amount of money that a used Prius costs. So would you invest 10K to a 10K car? It wont be 20K car if you are going to sell it =). But if you invest 300€ for 10K car you might get some benefit out of that and are able to get your money back by saving the money from cheaper fuel. And there is not so much use turning Prius to a plugin because the range is so poor, it is something like 20km! So would you pay 10k for 20 extra km?