ME442 Wire-In ECU

Fully Sequential Four/Six/Eight Cylinder Engine Management
feature rich | accurate | reliable

The ME442 Wire-In ECU is a feature rich and future proof four, six and eight cylinder injection engine management system. Built from the ground up using the latest control strategies means a modern, powerful, VE based ECU, with enhanced feature set including closed loop boost, in-built Wideband Lambda Control, DSP Knock Control, on-board data Logging and VVT control – all in a compact form factor. Massive IO means the ME442 can handle anything thrown at it, and custom tables means any specific algorithms required can be easily derived.

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  • VE Based, Fully Sequential Injection (up to Eight Cylinders)
  • Sequential Ignition (up to Eight Cylinders)
  • Boost Control
  • Idle Control
  • In-Built Wideband Lambda Control
  • CAN-bus
  • Data-Logging
  • Dual Drive-by-Wire
  • Switchable Maps
  • VVT Control
  • DSP Knock Control
  • Massive, configurable IO
  • Advanced Motorsport Features
  • Powerful Tuning Suite


  • Powerful 180MHz RISC processor
  • 90 Way Automotive connector
  • IP67 Sealed Casing
  • DSP Knock Processor
  • 8x IGBT Coil Drivers
  • 4x VR/HALL Crank/Cam Inputs
  • Fault Diagnostics
  • On-Board Wide-band LSU4.9 Controller
  • Serial & CANBus Communications
  • 38 Outputs, 28 Inputs
  • 2x 7A DBW H-Bridge

VE Based Fuelling

Accurate, modern VE based modelling of the engine means faster to tune, and more accurate compensations for environmental changes as opposed to older pulse-width based management systems. Microsecond accuracy and fuel and ignition calculations carried out over 500 times a second means unparalleled transient response and consistent results.

Idle Control

PID Closed Loop Stepper based, DBW or PWM Idle control with idle up on demand from other systems such as AC and cooling fans means OEM-like starting, warm-up and drive-ability. Spark-Scatter means even faster idle response by varying the ignition advance to compensate for slight load variations.

CANbus Connectivity

With CAN-Bus, you can connect other devices such as dashboards, EGT modules or power control systems directly to the ME442, expanding its control and data capture with the simplicity of a 2-wire, vehicle wide network.

VVT Control

The ME442 comes equipped with a dual-VVT closed loop control system. From the enhanced Honda VTEC control algorithm, through to continuously variable systems as used by the Ford ST170 & BMW VANOS engines. Optimised camshaft timing helps to deliver a smoother, higher torque curve across the rev-range.

Massive I/O

Inputs & outputs can have an array of different functions assigned, meaning unused injector channels could instead be used for boost control, or the spare O2 signal could be used for a Flex Fuel sensor. With 90 pins for connectivity, and over 60 channels of IO, including 38 Outputs, 12 Analog and 8 Digital inputs means even the most complex engines can be controlled and monitored with the ME442.

Knock Protection

The ME442’s advanced knock control offers true DSP processed measurement of knock, with per-cylinder angular windowing to locate, and act upon signs of knock, ensuring engine safety and longevity. Fuel enrichment, ignition retard and user definable aggressiveness give maximum control.

Fault Diagnosis

Using the latest Bosch ASICs for outputs, the ME442 actively monitors for short, open circuit and over current conditions on the injectors and coil drivers – making it easier to track down wiring faults, or protecting against hardware failure and connection errors.

On-board Logging

With 4GB of non-volatile on-board memory, the ME442 will log 80 channels at over 50Hz for more than an entire Le Mans 24 hour session!

Wideband Lambda Built-In

The ME442 features a BOSCH LSU4.9 Wideband controller built in for accurate, fast measurement of exhaust gasses to determine the engine’s Air/Fuel Ratio. Coupled with closed loop control, the ECU will target the correct fuelling, or, populate its Long Term Trim table to show errors and adjustments made automatically in real time to the VE table. Even better, when connected with MEITE you can use auto-tune and let the ECU do the hard work of tuning the VE table to perfection.

Boost Control

Fully featured closed and open loop boost control means accurate manifold pressures and turbo waste-gate management – several dimensions of control including throttle, rpm and even gear based boost targets. Quicker spooling and stable boost means optimised torque can be delivered under all conditions.

Motorsport Features

Switchable maps, Launch Control, 2-Step Limiters, Water Injection, Flex Fuel & Anti-Lag are just a few of the advanced features of the ME442 – all included, all unlocked. And with more features added over time via free, in-field firmware updates, the list is ever growing…

Custom Functions

With general purpose tables and custom variables, you can combine inputs and effectors to create practically any bespoke function you may require, all from within the MEITE tuning software.

Powerful Tuning Software

The Motorsport Electronics Integrated Tuning Environment, or MEITE, for short, is a powerful, flexible Windows tuning interface for working with our range of ECUs. Fully customizable layouts and interface, allowing the novice to play with just the basics (starting from one of our many base-maps), or the advanced tuner to really get under the hood, the options are there…

Worldwide Tuner Network

We have over 100 authorised tuners across the planet, and the list is constantly growing – meaning you’re never far away from a tuning professional who has experience of the ME442 and will therefor get the best from your engine. That being said, any competent rolling road tuner will be able to use the MEITE software to tune the VE and ignition tables, and we are always on hand for further support if required on the day. Want to know where to find them? See the map here.

Buy the ME442 Online

Visit our online shop now to configure and buy your ME442
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  • Advanced VE Fuel Model
  • Sequential Fuel & Ignition
  • Digital Crank/Cam Triggers, Array of OEM Patterns Supported
  • Real-Time Switchable Fuel, Ignition & Boost Maps
  • Individual Cylinder Trims
  • Re-mappable Inputs/Outputs
  • 16×16 Floating Point Fuel, Ignition, AFR, VVT, Boost Tables etc
  • Multi-Dimensional Trims (IAT, CLT, VSS, DeltaError)
  • Closed Loop/Open Loop Boost, Idle, VVT, Lambda
  • Closed Loop VVT & simple V-Tec cam control
  • Water-meth injection Control
  • Flex-Fuel Support
  • DSP Windowed Per-Cylinder Knock Control
  • Motorsport Features such as Anti-Lag, Launch Control
  • 6x General Purpose Tables (Create any function you can think of!)
  • Long Term Trim and Auto-Tune


Any unused outputs can be re-purposed to any other output function.

  • 8x IGBT Ignition Drivers with event sensing and current monitoring (can also be used to drive active ignitors)
  • 8x Injector Outputs (2.5A) with current sensing and fault detection (open/short etc)
  • 16x Low Side, 500mA drivers (8x PWM-able with open/short detection)
  • 4x High Current PWM-able with over-current & fly-back protected outputs
  • 2x Half Bridge DBW Driver 6.5A with protection (2x High Side, 2x Low Side, PWM-able)
  • 1x Full Bridge Stepper Driver (2x High Side, 2x Low Side, PWM-able)
  • 1x 12V Tachometer Output
  • On-board 6DOF Accelerometer and Gyro


  • 4x Analogue Temp Inputs (High-Z Buffered, 2K7 to 5V)
  • 7x Analogue Voltage Inputs (High-Z Buffered 0-5v protected)
  • 1x On-board Voltage and Battery Voltage Monitoring
  • 4x crank/Cam VR/Hall/Opto/Speed Inputs with active noise rejection
  • 6x Digital Switch/Flex Fuel/Frequency/Wheel Speed Hall Inputs
  • 1x Wide-band LSU4.9 Direct Sensor Input with fault detection BOSCH ASIC Powered
  • 2x Knock Input (DSP Filtered and Windowed)

Systems & Communications

  • 180MHZ 32-bit FP RISC Processor
  • 5.5-28V Input Supply
  • Dual 5v 200mA sensor reference supplies
  • Sensory Ground reference
  • 2x 2.0b CAN-Bus
  • 1x RS232 Serial Comms (Tuning and Data, supports FTDI USB Cables)
  • 4Gb non-volatile On-board Data-Logging Memory with Battery Backed Real-Time-Clock
  • 90 Way Automotive Connector
  • IP67 Sealed Alloy Casing
  • ISO9001, UK Assembly & Testing

Tuning Software (MEITE)

  • Intuitive, developed with real-world feedback from 100’s of tuners
  • Everything real-time adjustable
  • Diagnostics and analysis functionality
  • Custom layouts, tabs and functions
  • In-built firmware update tool for ease-of-use
  • Custom “part calibration” import – use settings from other maps in a current map
  • Offline Editing of calibrations
  • Real-time tracing
  • Data-logging of all variables and Auto-Tune

Fuelling Control

  • Configurable Load/RPM BINS 16×16, 32 bit floating point Tables
  • Multiple Fuel Tables
  • Injection Angle
  • Priming Pulse Settings and Crank Pulse Settings
  • Cranking Enrichment
  • After-Start Enrichment and ASE Time Decay
  • Warm-Up Enrichment
  • Acceleration Enrichement TPS/MAP based with Coolant Modifier
  • IAT Correction Table
  • Idle Trims
  • 16×16 AFR Target Table factored into VE Equation
  • Speed-Density/Alpha-N with optional Blending
  • Injector Voltage Offset Table
  • Overrun Fuel Cut
  • Closed Loop Narrow-band/Wide-band Lambda control with Bosch LSU4.9 Controller On-Board
  • Flex-Fuel secondary tables

Ignition Control

  • 16×16 32bit Table
  • Closed Loop DSP Windowed Knock Control On-board
  • Battery Voltage Dwell Correction 16×16 Table
  • Individual Cylinder Trimming
  • IAT and Coolant Trim
  • Spark-Scatter Ignition Idle Control
  • Flex-Fuel Control
  • Switchable Ignition Tables

Crank/Cam Triggering

  • VR/Hall/Opto Inputs as required
  • Auto-scaling, Parametric Noise Rejection
  • Range of OEM Patterns Supported

Idle Control

  • PWM based Closed/Open/Manual Diagnostic Modes
  • 4-wire Stepper based idle control
  • Cranking/Return to idle Settings reference Open-Loop table for wide-control
  • DBW Idle Control *where DBW is used
  • AC/Fan Auto-Idle Up Settings
  • PID Based for Accuracy
  • Fuel Modifiers
  • Ignition Spark Scatter
  • Jacked-Throttle Miss-Bang Idle Mode (Group-N ALS)

Knock Control

  • DSP Angular Windowed Knock Control
  • Settable Gains, Offset and Window Duration
  • Step Retard and Fail-Safe

Boost Control

  • Closed/Open Loop Boost Control by 16×16 RPM and Throttle table
  • Boost-by-Gear
  • Switchable Boost Tables
  • Over-Boost Protection
  • Pre-Start Duties
  • Anti-Lag Group-N

Variable Valve Timing

  • Fully Closed Loop PWM (Throttle X RPM table)
  • Dual Cam Support
  • Locked Angle or Locked Duty testing modes
  • Basic On/Off Mode (Honda V-Tec)
  • Supported patterns include MX5 2001-2005 and Ford ST170, Ford Puma 1.7
  • PID Tuning with Oil Temperature triggering & safeties
  • Programmable Rest State & Offset compensation

General Purpose Tables

  • 6x General Purpose Tables
  • Custom Variables and Outputs
  • Modify Fuel, Ignition, Boost and Idle strategies from the GPTs
  • 3D and 2D tables with ability to “chain” tables together for create complex functions


  • Industry Preferred RS232 for ECU mapping/communication (USB Adaptor available)
  • CAN-Bus on some models
  • USB on some models


  • 6.5A Half bridge
  • Closed loop, dual redundant DBW
  • DBW Idle Control functions
  • Software and Hardware fail-safes

Processing Power

  • 120Mhz 32-bit RISC Processor
  • Ignition Accuracy to 0.01 degrees, Fuelling to 0.001mS
  • 32-bit maths and tables (Table entries can have 8 decimal places for very high resolution)
  • ADCs/Analogue data reported to 16-bit accuracy
  • 20,000+ RPM

Analogue/Digital Inputs

  • Configurable “HRT”‘s for every analogue channel – use any sensor. Basemaps pre-set for factory sensors.
  • Wide-band O2 LSU4.9 Controller Built In
  • TPS, IAT, CLT, MAP, Lambda standard inputs
  • Selectable feature for digital/analogue inputs
  • Spare/unused analogue lines can be used for general purpose tables or digital switches

Environmental & Physical

  • Automotive -20 – 85*C
  • Voltage 5.5-28V
  • Operating Current Approx 120mA @ 13v
  • Electrically isolated and protected inputs/outputs
  • 90 Way Automotive Connector
  • IP67 Sealed Alloy Casing


  • 4Gb On-board Data logging – over 2,000 Hours of all variables
  • Unlimited PC based logging via MEITE
  • User settable Triggers and markers