Built to order. Allow 2-4 weeks lead time for assembly.

Standalone engine management computer
 Miata, MX5, Eunos, Roadster
89-93
94-95
99-00
01-05
04-05 Mazdaspeed MX5

MS3 Pro
Control VVT engine!

Fully Plug and Play Installation - No wiring required for basic functionality.  Average install time is under 1 hour. Base maps 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. Supports most aftermarket wideband sensors. This is the same ECU 949 Racing uses on it's fleet of record setting and national championship winning Miatas.

Instructions:   01-05 Instructions    04-05 Mazdaspeed Instructions

Easy to Use and Install!    

• Fully Plug and Play Installation - No wiring required for basic functionality.  Average install time is under 1 hour for most models!
• Base maps 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
• Supports most aftermarket wideband sensors

    Fully Tunable Engine Control!    

• 16x16 Fuel Tables 
• 12x12 Ignition Tables
• 8x8 VVT tables
• Programmable voltage regulator control
• Multiple Acceleration enrichment strategies
• Closed Loop Idle Speed Control
• Air Conditioner Control
• 4 sequential fuel injector channels with available individual trim tables
• Onboard peak and hold drivers support both high and low impedance injectors - No external ballast resistor is needed!
• Allows removal of stock airflow meter

    Advanced Feature Set (Included!)    

• 12x12 Air Fuel Ratio Target Tables for use with wide band O2 sensor for precise tuning and table trim
• Mutiple traction control strategies
• Built-in support for a wide array of ignition triggers
• Built-in 3-step rev limiter with flat shift
• Launch Control
• Real time barometric correction
• Internal 4-bar MAP sensor reads up to 44PSI of boost
• Overboost protection
• Closed loop boost control
• Knock sensor input with adjustable sensitivity
• Headphone output for knock sensor - listen for knock while you tune!
• Table switching input. Change fuel and spark maps on the fly for different fuels, maximum power, maximum economy, nitrous activation, etc.
• Input for flex fuel sensor
• CANBus connector allows interconnection of other MegaSquirt-compatible devices for additional functions (EGT Input, Automatic Transmission Controller, Additional Sensors.....the possibilities are limitless!

Megasquirt Info and Downloads