Unlock safe, repeatable performance on E85 or blended pump ethanol with a complete flex fuel kit for your BMW G Series B46 or B48. Nforcd supplies these Bluetooth and CANflex ethanol content kits so you can see your exact ethanol percentage in real time via the LED display or on your smartphone with the BMS CANflex or Fuel-It! app, and integrate with popular tuning platforms.
- Real time ethanol content monitoring for E85 and blends
- Choice of Bluetooth or CANbus based ethanol analyser solutions
- Works with JB4 and flash-only setups including MHD, BM3 and EcuTek
- Genuine Continental ethanol sensor with high quality stainless braided lines
- Plug and play options for a straightforward install in around 30 minutes
- Custom fitting with 1/8 inch NPT port that simplifies adding optional port injection
Choose your kit
- Complete Kit with CANbus ECA and Plug and Play Harness Suitable for stock ECU flashes, JB4, EcuTek and MHD. If you have a manual transmission or are running a BM3 flex fuel tune, select the Universal Harness instead.
- Complete Kit with CANbus ECA and Universal Harness Universal wiring option that works for all applications, including manual cars and those using a BM3 flex fuel tune.
- Complete Kit with Fuel-It! Bluetooth ECA Bluetooth analyser for use with the Fuel-It! app and JB4. This option does not include CANbus integration.
What is included
CANbus ECA kits include:
- Genuine Continental ethanol content sensor
- BMS CANflex LED ethanol content analyser for use with JB4, MHD and BM3
- Stainless steel braided fuel lines with black nylon sheathing
- Custom fitting with removable 1/8 inch NPT port for easy addition of optional port injection lines
- Plug and play or universal harness, depending on the option selected
Bluetooth ECA kit includes:
- Genuine Continental ethanol content sensor
- Stainless steel braided fuel lines with black nylon sheathing
- Custom fitting with removable 1/8 inch NPT port for easy addition of optional port injection lines
- Fuel-It! Bluetooth analyser with Bluetooth app support and 5v analogue output for JB4 or flash tuning
App support
Integration and compatibility
The CANbus ECA broadcasts on the standard 0xEC flex fuel CAN address and is compatible with JB4 and flash-only applications such as MHD, BM3 and EcuTek.
Vehicle fitment
- 2022 onward BMW G42 B48 220i, 230i
- 2019 onward BMW G20 G21 B46 B48 330i, 330e
- 2021 onward BMW G22 G23 G26 B48 430i
- 2017 to 2023 BMW G30 B46 B48 530i, 530e
Notes
- Manual transmission or BM3 flex fuel tune requires the Universal Harness option.
- G Series JB4 users: connect the white or blue wire to position 4 on the JB4 25 pin harness, then select WMI Ethanol Setup option 0 to enable flex fuel input on pins 2, 3 or 4.
- Buying items individually is possible, but the system must include fuel lines, the ethanol sensor and an analyser to function.
Nforcd knows these BMW flex fuel kits well and they have proven popular with customers looking for an easy, reliable E85 upgrade. Order online today, or if you would like professional installation, fitting is available at Nforcd in Warwickshire. Request a quote via Sales@nforcd.com.





