Description
The Fuel-It Bluetooth Flex Fuel Kit is designed for 2021+ Mazda 3 2.5L Turbo owners running E85 or ethanol fuel blends. This kit allows you to monitor exact ethanol content in real time using the Fuel-It! or JB4 app on your smartphone or tablet, ensuring safe and consistent performance.
This is a complete plug-and-play solution that installs a Bluetooth ethanol sensor in your Mazda 3 2.5L Turbo with no permanent modifications. OEM-style billet fittings and braided fuel lines allow for clean integration into the factory fuel system.
Kit Includes:
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Genuine Continental® ethanol sensor
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Two stainless steel braided fuel lines with black nylon protective sheathing
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Proprietary custom billet fittings for OEM plug-and-play integration
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Fuel-It! Bluetooth analyzer
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Plug-and-play wiring harness
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Bluetooth app compatibility
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5V analog output for JB4 or flash tuning
Features:
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Real-time ethanol content monitoring
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Plug-and-play installation
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Designed specifically for Mazda SKYACTIV® 2.5L Turbo platforms
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Supports both Bluetooth and analog output tuning systems
JB4 Integration Notes:
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Connect the white wire to position #4 on the JB4 25-pin harness
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Select WMI Ethanol Setup option 0
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Enables pin locations 2, 3, and 4 for flex fuel input
Vehicle Fitment:
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2021+ Mazda 3 SKYACTIV® 2.5L Turbo
Additional Notes:
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Replacement fuel lines are available separately
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For the system to function properly, the kit must include fuel lines, ethanol sensor, and analyzer
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Free shipping in the USA applies to complete kits only
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If unsure about compatibility, provide a photo of the engine bay with the engine cover removed for verification
This kit delivers accurate ethanol monitoring with seamless OEM-style integration for safe and consistent performance on the Mazda 3 2.5L Turbo.
