The ME442 ECU builds upon the ME221 feature-set by incorporating our premier control system bringing with it in-built Bosch 4.9 Wide-band Control, SD Card Data-logging with battery-backed Real-Time Clock, Direct K-Type EGT Input, CAN-bus communications as well as a host of spare I/O and General Purpose custom tables. The ME442 ECU ships with a genuine Bosch LSU4.9 wideband sensor and integration harness in the box for the ultimate plug-and-play experience, no more aftermarket wideband controllers!

The ME442 MX-5 Plug-In is our latest Engine Management System for the Mk2/NB (3 Plug NA) MX-5 / Miata, years 1999-2000. This package includes the LSU4.9 Sensor and cable.

This convenient plug-in ECU is designed to replace the original circuit board within the casing of the vehicle's factory ECU. The ECU retains the original connector, allowing for a straightforward installation process. The OEM ECU casing provides protection and ensures a clean, factory-like appearance. By fitting inside the original casing and utilising the original connector, the ECU offers a discreet and efficient way to upgrade the engine's control system.

With this type of plug-in ECU, you can enjoy the benefits of enhanced engine performance and customisation without needing to modify the wiring harness or perform extensive rewiring while maintaining full OEM functionality!

It supports the 1.6 and 1.8 model from the same hardware, the only extra thing you need to do besides plugging it in is run a MAP vacuum hose (supplied) from the ECU to the intake manifold.

Along with the standard ME221 feature set, the ME442 version adds the following features:

On-board Bosch Wideband Lambda O2 Controller
On-board Real-Time-Clock and SD Card Data Logging
Drive-by-Wire Support (some models, please enquire if needed)
K-Type EGT Input
Accelerometer and Gyroscope
CAN Bus for external dashboards and expandability
The core has as standard:

Uses the ME221 ECU Core (NXP Automotive Processing Power)
Supports factory sensors.
Truly Plug-In : Supports both switched TPS and linear TPS conversions.
16×16 Fuel and Ignition Tables (with dual table switching)
VE based fuelling algorithm.
Run any type of high impedance injectors.
DSP Knock Control
In-built 60psi MAP sensor
Closed Loop Boost, Lambda and Idle Control
Launch Control
Fully Sequential on 1.8 version
In the field regular firmware updates and improvements
Uses the powerful MEITE tuning studio.
An open approach to firmware/software features.
Supplied with rolling road certified and developed basemaps for either turbo or NA setups.

Key Features

VE Based fuelling algorithm (MAF-less)
Supports all OEM Sensors/Dash/AC etc
Boost Control
OEM Idle Control
High Accuracy
COP Support
USB Connectivity
Switchable Maps
VVT & DSP Knock Control
Configurable IO with Auxillary Inputs/Outputs
Advanced Motorsport Features
Powerful Tuning Suite
On-board Bosch Wideband Lambda O2 Controller
On-board Real-Time-Clock and SD Card Data Logging
Drive-by-Wire Support (some models, please enquire if needed)
K-Type EGT Input
Accelerometer and Gyroscope
CAN Bus for external dashboards and expandability

What's in the box
ME442 ECU
Vacuum hose
Sticker
USB Cable
Bosch LSU4.9 Wideband sensor and integration harness