Description
If you’re running E85 or ethanol blends in your G Chassis BMW equipped with the B46 or B48 engine, accurate ethanol content monitoring is essential. The Fuel-It! BMW B46/B48 Bluetooth and CANflex Flex Fuel Kits allow you to monitor real-time ethanol content using an LED display, JB4 interface, or mobile app on your smartphone or tablet.
This is a complete plug-and-play flex fuel solution designed to install in approximately 30 minutes with no permanent modifications. The system integrates seamlessly with JB4 and flash-only tuning platforms such as MHD, BM3, and EcuTek that read the standard 0xEC flex fuel CANbus address format.
Fuel-It! offers multiple kit configurations to match your tuning setup and vehicle configuration.
Available Kit Options
Complete Kit with CANbus ECA and Plug & Play Harness
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Includes CANbus ECA and plug-and-play harness
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Compatible with stock ECU flashes, JB4, EcuTek, and MHD
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Manual transmission vehicles or BM3 flex fuel tunes require the universal harness
Complete Kit with CANbus ECA and Universal Harness
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Universal harness compatible with all applications
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Required for manual transmission vehicles
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Required for BM3 flex fuel tuning
Complete Kit with Fuel-It! Bluetooth ECA
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Bluetooth-based ethanol analyzer
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Compatible with JB4 and Fuel-It! mobile app
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Does not include CANbus integration
Complete Kit with CANbus ECA Includes
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Genuine Continental® ethanol sensor
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BMS CANflex LED ECA compatible with JB4, MHD, and BM3
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Stainless steel braided fuel lines with black nylon sheathing
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Custom fitting designed to simplify port injection integration by removing the 1/8" NPT fitting
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Plug-and-play harness (when selected)
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BMW/Supra accessory harness for S58 and B58 motors
Complete Kit with Fuel-It! Bluetooth ECA Includes
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Genuine Continental® ethanol sensor
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Stainless steel braided fuel lines with black nylon sheathing
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Custom fitting for easy port injection integration
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Fuel-It! Bluetooth analyzer
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Bluetooth app compatibility for iPhone and Android
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5V analog output for JB4 or flash tuning
Installation & Compatibility Notes
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For BMW G-Series JB4 platforms, connect the white or blue wire to position #4 on the JB4 25-pin harness
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Select WMI Ethanol Setup option 0 to enable pin location 2, 3, or 4 flex fuel input
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Components may be purchased individually, but the system must include fuel lines, an ethanol sensor, and an analyzer to function
Vehicle Fitment
BMW
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2022+ BMW G42 B48 220i
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2022+ BMW G42 B48 230i
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2019+ BMW G20 G21 B46 B48 330i
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2019+ BMW G20 G21 B46 B48 330e
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2021+ BMW G22 G23 G26 B48 430i
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2017–2023 BMW G30 B46 B48 530i
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2017–2023 BMW G30 B46 B48 530e
The Fuel-It! BMW B46/B48 Flex Fuel Kit delivers precise real-time ethanol monitoring and seamless integration, making it the ideal E85 solution for high-performance G Chassis BMW builds.
