Plug and Play engine management  for the  90-97 Miata, MX5, Eunos, Roadster

Fully programmable - Full standalone computer

12x12 fuel tables

12x 12 ignition tables

Linear interpolation between the cells for fine resolution

Programmable Rev Limiter

Overboost Protection

Closed loop Air/Fuel Ratio mapping when using optional wideband o2 system

Coolant temp timing advance

Inlet temp timing retard

MAPdot accel/decel enrichment

Overrun fuel cut

Water injection maps

Nitrous injection control

Staged or additional injectors

EGT inputs

Shift light

2.5bar MAP Sensor (internal) good for up to 21 psi of boost

Wideband O2 Input.  We recommend the Innovate Motorsports LC-1 or LM-1

Extra Features added to the hardware:

Launch Control -  Capable of using the stock clutch switch, alternately you can wire in a push-button if you prefer

Knock Sensor Input (for use with Knocksense MS external knock box)

Closed Loop Idle Speed control

AC Control (yes your ECU controlled A/C will continue to function)

100% Plug-n-Play option leaving the stock AFM in place, or optionally you can remove the factory AFM/Airbox for increased throttle response and power. All that's needed to remove the factory AFM is a GM Style IAT Sensor & bung from the above drop down menu, a short piece of aluminum pipe and a cone filter.

Megasquirt Screenshots

Megasquirt Info and Downloads