The ME442 for Mazda MX-5 NC utilises a clever high-quality patch harness that plugs directly into the factory loom. All factory functions are retained, except for cruise control and full DSC (Dynamic Stability Control). However, full DSC is coming in a future firmware update. Upgrading to a ME442 ECU offers many benefits over remapping the standard ECU, which does not prove effective when chasing more than modest power increases.
Designed from the ground up as a standalone ECU, the ME442 boasts a vast range of features and strategies to control the engine. These include but are not limited to closed-loop boost control, built-in wideband lambda control, DSP knock control, on-board data logging and VVT control. The ME442 also includes a massive amount of I/O meaning additional sensors and be added and CAN-Bus can send data to race dashes.
The Motorsport Electronics ME442 includes an on-board LSU4.9 wideband controller, eliminating the need to wire in an external controller and preventing disparities between the readings recorded by the controller and the ECU. Furthermore, custom tables allow parameters to be mapped against one another, allowing any specific algorithms to be implemented as required.
Core Charge: The Core Charge is for the return of your stock ECU. We recommend you claim this back after you have had your car tuned as once returned to us the OEM ECU will no longer be serviceable. Please contact us to arrange the return of the ECU when you are ready.
Features
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
- NC Pattern Only 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
- On/Off Mode with multiple switch points (Honda VTEC)
- 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
Communications
- Industry Preferred RS232 for ECU mapping/communication (USB Adaptor available)
- CAN-Bus on some models
- USB on some models
Drive-by-Wire?
- 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
DataLogging
- 4Gb On-board Data logging ? over 2,000 Hours of all variables
- Unlimited PC based logging via MEITE
- User settable Triggers and markers