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Fuel-It! FLEX FUEL KIT for BMW M140I How connect to JB4?

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  • Fuel-It! FLEX FUEL KIT for BMW M140I How connect to JB4?

    Hi all! I bought an ethanol sensor and put it in my car, it works great, but I want to connect it to Jb4. The instructions say that I should use pin 16, but it is occupied by EWG, just as I understood, I can use 3 or 14 pin, but they are occupied by WMI. How to connect the sensor correctly so that jb4 can use it?

  • #2
    That is pin 4 and enable bit 2.


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    • #3
      It work, thanks! Add please on the website manual for ethanol sensor install for b58 gen1 motors)

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      • #4
        Hello, I have a problem where the jb4 is not reading my ethanol. Flex fuel Bluetooth works great. But nothing on the jb4. I have it connected to pin 4 and tried bit 0, 1 or 2 but the e85 gauge is not responding. What have I done wrong?

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        • #5
          Hi Mutunekk. Have you selected the correct data output parameter in the fuel it app?

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          • #6
            Originally posted by mutunekk View Post
            Hello, I have a problem where the jb4 is not reading my ethanol. Flex fuel Bluetooth works great. But nothing on the jb4. I have it connected to pin 4 and tried bit 0, 1 or 2 but the e85 gauge is not responding. What have I done wrong?
            Please contact [email protected] as he will further assist you.
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            • #7
              Originally posted by mutunekk View Post
              Hello, I have a problem where the jb4 is not reading my ethanol. Flex fuel Bluetooth works great. But nothing on the jb4. I have it connected to pin 4 and tried bit 0, 1 or 2 but the e85 gauge is not responding. What have I done wrong?
              Start your own support thread and upload a log.

              Click on our banner to visit our website!
              Video of our Stage 2 LPFP upgrade installation.

              BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways.

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