Universal LED Flex Fuel Kit with BMS CANflex ECA for JB4, CANbus, Bluetooth, & E85 Integration
This is the complete solution for adding a ethanol sensor and analyzer to your vehicle with CANbus, Bluetooth, and an LED display in one unit!
If you're running E85 in your vehicle, you need this kit!
This is a complete kit to install a flex fuel kit in your vehicle in about 30 minutes.
With our new custom 180 degree billet fittings, integration with your 5/16" or 3/8" fuel lines has never been easier! Simply disconnect your factory line, install the ethanol sensor with our new custom fittings and reconnect your factory lines...it's that simple!
In addition, our new ECA's offer 4 ways to read your ethanol content! The LED display always shows your current ethanol content or you can use your mobile device to connect via bluetooth to read it on your phone! Or, if you have CANbus integration available (consult with your tuner on this) your ECU can now read the ethanol content for full flex fuel capability! As if that wasn't enough, you also connect the 0-5 volt output wire (blue wire) to your analog gauge or ECU to read the ethanol content.
Kit includes:
- Genuine Continental® ethanol sensor
- BMS CANflex ECA
- Our new custom 180 degree fitting billet fittings
- Universal harness with optional fuel pressure sensor connection included
- BMS CANflex Bluetooth app
Download the free BMS CANflex app here:
Features and Benefits
• Monitor ethanol content live through the FREE JB4PRO or CANFlex app
• Seamless JB4 integration with real-time ethanol content monitoring
• Plug-and-play CAN integration with no guesswork or manual tuning
• Designed for enthusiasts who want more power without compromises
• The cleanest way to add flex fuel capability to your vehicle
*****Wiring diagram for the new BMS Bluetooth CANflex Harness*****
Red: (originally Red/Green): 12v switched power via fuse tap or posi-tap
Black: Chassis ground
Brown: CAN-
Green: CAN+
Blue: 5V legacy output for input into the JB4 or other 0-5 volt analog gauges
Supports all popular CANbus addresses (0xec, 0x4cb, etc), including custom addressing.

