MS3Pro PnP for NA and NB Miata


SKU: MS3Pro Category:

The MS3Pro PnP has been the de-facto standalone engine management system for all NA and NB Miatas for over a decade.  We’ve installed and tuned just about every standalone available for the Miata, and while they all have their pros and cons, we keep coming back to the MS3 Pro.  With unparalleled support, it takes Miata plug and play engine management to the next level with a package that is easy to install and use, proven and reliable.


MS3 Pro PnP by AMP EFI – DIY Autotune

Miata MS3Pro PnP Features:

  • Fully plug and play installation – The MS3 Pro utilizes factory-style connectors and requires no wiring for basic functionality.
  • Average physical installation time is around an hour
  • Comes pre-loaded with a base map to help your engine start on the first turn of the key
  • Real-time tuning and data logging with a laptop connection
  • 8 GB internal data logging with built-in SD card; can be set up to automatically log every time you turn the key or floor the pedal.
  • Supports most aftermarket wideband sensors, both 0-5v analog and CAN connections.

Fully Tunable Engine Control!

  • A variety of engine management strategies including speed density, Alpha-N, and ITB Mode
  • 16×16 fuel and ignition tables allow efficient, high resolution tuning
  • Multiple Acceleration Enrichment strategies including time-based, Accel Pump, EAE and X-Tau.
  • Closed Loop Idle Speed Control
  • Fan and air conditioner idle-up control; supports PWM/brushless fan operation with minor wiring
  • 4 sequential fuel injector channels with individual trim tables
  • Allows removal of stock airflow meter

MS3Pro PnP Advanced Feature Set

  • Full VVT support if swapping to 01-05 VVT motor
  • 12×12 Air Fuel Ratio Target Tables for use with wide band O2 sensor for precise tuning and table trim.
  • Adaptive Idle RPM Correction provides fast, stable closed loop idle control
  • Input for flex fuel sensor – Seamlessly switch between E85 and gasoline blends
  • Programmable voltage regulator control for NB alternator swaps
  • Full injector characterization including small pulsewidths and voltage correction
  • 12×12 independent positive and negative EGO authority tables
  • 12×12 EGO delay table provides proper characterization of exhaust transit times, customized to your car, for the most accurate fueling possible.
  • Multiple traction control strategies
  • Built-in 3-step rev limiter / launch control with flat shift and burnout rev limiter
  • Real time barometric correction
  • Internal 4-bar MAP sensor reads up to 44PSI of boost
  • Closed loop boost control (Requires EBC solenoid kit)
  • Rally-style turbo antilag
  • Water injection control – on/off or variable
  • Table switching input – Change fuel, spark, AFR maps and more on the fly for different fuels, nitrous activation, etc.
  • CANBus connector allows interconnection of other MegaSquirt-compatible devices for additional functions (AFR, EGT, additional sensors…..the possibilities are limitless!)
  • Engine protection features:
    • CLT-based rev limter
    • AFR safety system
    • OEM knock sensor support with adjustable sensitivity, crank angle windowing, and more
    • User-definable overboost protection

What’s in the box:

  • MS3Pro PnP ECU
  • MSPNP RS232 serial tuning cable, 6′ (USB adapter sold separately, if needed)
  • Tuning Software and Documentation on USB memory stick
  • 6′ Vacuum Hose for MAP Signal and ‘T’ fitting
  • Four Screws for ECU mounting
  • Registered version of TunerStudio and MegaLog viewer included

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