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Megasquirt 3 Pro Plug and Play

Megasquirt 3 Pro Plug and Play

Regular price $1,149.99 USD
Regular price $1,199.00 USD Sale price $1,149.99 USD
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The MS3Pro PnP is the fully-featured stand alone ECU you need for full control of spark, fuel, and so much more. What’s more, it’s completely plug and play. Just remove your stock ECU and plug this in, and fire up your car.

When installing FlowForce Injectors, start by setting the dead times and required fuel based on the injector size. Then you’ll need to autotune the whole fuel table to dial it in.


  • Fully Plug and Play Installation – No wiring required for basic functionality.

    • Average install time is under 1 hour!

  • Base map is pre-loaded 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

  • Supports most aftermarket wideband sensors

Fully Tunable Engine Control!

  • 16×16 Fuel Tables allow high resolution tuning

  • 16×16 Ignition Tables

  • Multiple Acceleration enrichment strategies

  • Closed Loop Idle Speed Control

  • Air Conditioner Control

  • 4 sequential fuel injector channels with individual trim tables

  • Allows removal of stock airflow meter

  • 12×12 Air Fuel Ratio Target Tables for use with wide band O2 sensor for precise tuning and table trim.

  • VVT support

  • Programmable voltage regulator control for NB alternators

  • 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

  • Overboost protection

  • Closed loop boost control (Requires EBC solenoid kit)

  • Rally style anti lag

  • Water injection control – on/off or variable

  • Knock sensor input with adjustable sensitivity, crank angle windowing, and more

  • Table switching input. Change fuel and spark maps on the fly for different fuels, nitrous activation, etc.

  • Input for flex fuel sensor – switch between E85 and gasoline on the fly!

  • CANBus connector allows interconnection of other MegaSquirt-compatible devices for additional functions (EGT Input, Automatic Transmission Controller, Additional Sensors…..the possibilities are limitless!

What you get in the box:

  • Miata MS3Pro PnP ECU, specific to model year

  • 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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