motorsport electronics me221

Motorsport Electronics ME221 Plug-In MX-5 1999-2000

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The ME221 MX-5 Plug-In is the latest Plug-In Engine Management System for the Mk2 (3 Plug NB) MX-5 / Miata, years 1999-2000 1.6/1.8


Every major and respected MX-5 Tuner in the UK, as well as the biggest, Flyin’ Miata in the US, uses and recommends the ME221 Engine Management System over other systems – see our forum post here for more details and feedback on the system


Wait! If you’re wanting even more features such as in-built Bosch Wideband Lambda Control, SD Logging, Gyros/Accelerometers, Drive-by-Wire and EGT input, then contact us about the ME442!

It supports the 1.6 and 1.8 model from the same hardware, and also fits the OEM case, which means the conversion installs tidily into the OEM position. 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.

New for 2019 – the Gen2 Model adds direct USB Connectivity and even more I/O!


  • Uses the ME221 ECU Core (NXP Automotive Processing Power)

  • Supports all factory sensors.

  • Truly Plug-n-Play

  • 16×16 Floating Point Fuel and Ignition & Boost Tables (with dual table switching)

  • VE based fuelling algorithm.

  • Run any type of high impedance injectors.

  • Lots of Spare-IO for extra sensors, COP Upgrades as well as multiple spare outputs!

  • DSP Knock Control

  • in-built 45psi MAP sensor.

  • Closed Loop Boost Control, Protection and Boost by Gear.

  • Launch Control and ALS.

  • Stock Alternator Control on Mk2/Mk2.5 models.

  • Fully Sequential Injection and Ignition available.

  • In the field regular firmware updates and improvements.

  • Uses the powerful, free, MEITE tuning studio.

  • An open approach to firmware/software features.

  • Supplied with rolling road certified and developed basemaps for either turbo or NA setups.


 
Package contents:



  • ME221 Plug-In Core Board

  • Vacuum Hose

  • USB Communications Cable

  • Stickers


See the manuals, and grab the tuning software here.
 If you wish to run without a MAF sensor, then you will need to install an Intake Air Temperature Sensor – some later models have a separate IAT sensor already. IAT sensors are available from the Motorsport Electronics section of our shop.