BMW M44 Ecumaster EMU Black ECU & Plug-In Harness Adaptor Kit

The BMW M44 Ecumaster EMU Black ECU & Plug-In Harness Adaptor Kit is designed for all BMW M44 engines and allows the factory engine loom to connect directly to an Ecumaster EMU Black ECU.

This kit includes the Ecumaster EMU Black standalone ECU and a BMW M44 plug-in harness adaptor, giving you a clean standalone ECU installation without needing to build a full custom engine loom.

The adaptor includes a built-in lead for the wideband lambda sensor and fuse protection for the wideband circuit. No additional wiring or setup is required for the basic adaptor installation on compatible applications.

The adaptor is supplied with a 6-way DTM lambda connection.

A DTM to lambda link loom is available separately if required.

Key Features

Designed for BMW M44 Engines
Plug-in harness adaptor suitable for all BMW M44 engine applications.

Ecumaster EMU Black ECU Included
Supplied as a complete kit with the Ecumaster EMU Black standalone ECU.

Uses the Factory Engine Loom
Designed to connect to the original BMW M44 engine loom, avoiding the need to build a full custom engine wiring loom.

Plug-In Installation
No additional wiring or setup is required for the basic adaptor installation on compatible applications.

Wideband Lambda Lead Built In
Includes a built-in lead for wideband lambda sensor connection.

Wideband Fuse Protection
Includes built-in fuse protection for the wideband sensor circuit.

6-Way DTM Lambda Connection
Supplied with a 6-way DTM lambda connection for a neat and serviceable installation.

DTM to Lambda Link Loom Available
A DTM to lambda link loom is available separately if required.

Additional Leads Available
Can be supplied with additional leads for extra sensors and/or boost valve control. Please contact us for more information before ordering.

Ecumaster EMU Black Features

The Ecumaster EMU Black is a powerful standalone ECU with advanced control features for performance and motorsport applications.

Key features include:

• Built-in 4 bar MAP sensor
• Built-in wideband lambda controller
• Bosch LSU 4.2 and LSU 4.9 wideband sensor support
• CAN bus communication
• Drive-by-wire throttle control support
• Flex fuel support
• Advanced fuel and ignition control
• Closed-loop fuel control
• Launch control
• Flat shift
• Traction control strategies
• Knock control support
• Motorsport data logging
• Configurable inputs and outputs
• Windows-based tuning software

Kit Includes

• 1 × Ecumaster EMU Black standalone ECU
• 1 × BMW M44 plug-in harness adaptor
• Built-in wideband lambda lead
• Built-in wideband fuse protection
• 6-way DTM lambda connection

Optional Extras

• DTM to lambda link loom
• Bosch LSU 4.9 wideband lambda sensor
• Additional sensor leads
• Boost valve control lead

Suitable Applications

• BMW M44 engines
• BMW E36 M44 applications
• BMW Z3 M44 applications
• BMW M44 engine swaps
• Fast road cars
• Track cars
• Drift cars
• Motorsport builds
• Standalone ECU conversions using the factory M44 engine loom

Important Notes

• This listing is for the Ecumaster EMU Black ECU and BMW M44 plug-in harness adaptor kit
• Designed for use with all BMW M44 engines
• DTM to lambda link loom is available separately
• Bosch wideband lambda sensor is not included unless selected
• Additional leads for sensors and/or boost valve can be supplied by request
• Please contact us before ordering if you require additional wiring options
• Professional installation and mapping are strongly recommended
• Final calibration should be carried out by a qualified tuner
• Please confirm your engine, vehicle model, and loom compatibility before ordering
• There may be a 5–7 working day lead time if the adaptor needs to be built to order

Motorsport Use Notice

This product is intended for motorsport, competition, tuning, conversion, and off-road use where permitted. Please ensure the product is suitable for your intended application and complies with any relevant rules, regulations, or emissions requirements before use.