B58 GEN2 FLEX FUEL ECA KIT

Dorch Engineering – B58 Gen2 Flex Fuel ECA Kit (Plug-and-Play | CANbus Integration)

Seamless Flex Fuel Conversion for Gen2 B58 Platforms

With full CAN-based Flex Fuel tuning now supported by modern software like Bootmod3 and MHD, Bluetooth ethanol sensors are no longer necessary. Enter our plug-and-play ECA solution—the most integrated and OEM-friendly way to add full Flex Fuel functionality to your Gen2 B58 build.

Our CANbus ethanol sensor not only monitors ethanol content but communicates directly with the DME, enabling your ECU to automatically adjust the fuel maps between E85 and pump gas — and everything in between. That means no more map switching, no more ethanol math at the pump, and no more guesswork.

✅ Key Benefits:

• CANbus Direct DME Communication: Enables true Flex Fuel operation with live adjustments

• No Cutting, No Tapping: Clean, reversible install — preserves factory wiring

• OEM-Grade Fitment: Seamless hose routing, no interference with engine covers or foam

• Ultra-Fast Sensor Response: Mounts close to injectors for real-time ethanol reading

• Fast & Simple Install: Adds ~30 mins to HPFP install or ~1 hour standalone

• DIY Friendly: Comes with a comprehensive, step-by-step instruction manual

📦 Kit Contents:

• Zeitronix ECA-CAN Module

• Custom PTFE Hose Set

• Dorch Plug-and-Play ECA Harness

• Genuine Continental Ethanol Sensor

• Pre-Cut Firewall Grommet

• Mounting Accessories

🚗 Vehicle Fitment (Gen2 B58 Only):

• Toyota

  • A90/91 – Supra

• BMW

  • G29 – Z4 M40i

  • G42/43 – M240i, M240xi

  • G20/21 – M340i, M340xi

  • G22/23/26 – M440i, M440xi

  • G30/31 – 540i, 540xi*

  • G32 – 640i, 640xi*

  • G11/12 – 740i, 740xi*

  • G15/16 – 840i, 840xi

  • G05 – X5 40i

  • G06 – X6 40i

  • G07 – X7 40i

  • G01 – X3 M40i*

  • G02 – X4 M40i*

*Fitment only confirmed on GEN2 B58-equipped model years. If unsure, send us your VIN for confirmation.