Sale

Air and Fuel Fuel Injection Systems and Components - Electronic

Dorch Engineering

B58 Gen2 Flex Fuel ECA Kit

$549.00 $499.00 Save $50.00

SKU: DE-582-ECA-TS1

In Stock
In Stock
Ships by Aug 4
Free Shipping over $100
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Dorch Engineering B58 Gen2 Flex Fuel ECA Kit leverages advanced CAN-based ethanol sensor technology to enable true Flex Fuel operation for tuned Gen2 B58 engines. This system communicates directly with the DME, allowing for automatic, on-the-fly adjustments to the engine's tune based on the real-time ethanol content. This eliminates the need for manual calculations or flashing different maps when switching between fuel types, providing a seamless transition from high-powered E85 maps to standard pump gas maps. The kit integrates into the OEM harness and hoses, with components tucking away neatly to allow for the reinstallation of factory sound insulation and engine covers. The ethanol sensor is positioned as close to the injectors as possible to ensure minimal lag time in reporting the actual fuel mixture entering the combustion chamber. Installation is estimated to take approximately 30 minutes when added to a traditional HPFP installation, or about 1 hour on its own. Kit Contents: - Zeitronix ECA-CAN Module - Custom PTFE Hose Set - Dorch Plug-n-Play ECA Harness - Genuine Continental Ethanol Sensor - Pre-cut Firewall Grommet - Mounting Accessories This kit is compatible with various BMW and Toyota models equipped with the Gen2 B58 engine, including the Toyota Supra A90/A91, G29 Z4 M40i, G42/G43 M240i/xi, G20/G21 M340i/xi, G22/G23/G26 M440i/xi, G30/G31 540i/xi, G32 640i/xi, G11/G12 740i/xi, G15/G16 840i/xi, G05 X5 40i, G06 X6 40i, G07 X7 40i, G01 X3 M40i, and G02 X4 M40i. It is important to note that this kit is ONLY compatible with Gen2 B58 equipped model years. The kit also offers flexibility for users who already have ECA hose/sensor sets, with an "electronics only" package available for updating to a CAN-ECA, and may fit other custom setups with a Continental ethanol sensor. Compatibility with existing custom setups should be verified by contacting Dorch Engineering directly.

MIA's Description

The Dorch Engineering B58 Gen2 Flex Fuel ECA Kit is a plug-and-play solution for monitoring and managing ethanol content in your vehicle's fuel system. It utilizes CAN-based communication to allow the DME to automatically adjust the tune between E85 and pump gas maps on the fly.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandDorch Engineering
Part NumberDE-582-ECA-TS1
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy