This is the index to the MSEXTRA manual for the MegaSquirt® EFI Controller.

It is currently under re-development and contains information specific to using the MS1/Extra and MS2/Extra firmwares on Megasquirt-1, Megasquirt-2, Microsquirt and Microsquirt-module (DIY-PNP) and information on Megasquirt-3

If you live or intend to operate your engine in an area that has specific pollution regulations, but sure to read the read this advice on pollution controlled vehicles and check the laws that apply in your locality to determine if using a MegaSquirt® or MicroSquirt® controller is legal for your application.

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Jump to: Megasquirt-1 - - Megasquirt-2 / Microsquirt / Microsquirt-Module - - Megasquirt-3 - - Tuning Software - - Trans control

MS1/Extra manuals

Configuration and setup for Megasquirt-1

  • MS1 Extra Info, Downloads   Copyright   Donate
  • MS1 Extra Basic Configuration Manual
  • MS1 Extra Software Manual
  • Advanced Settings (Hybrid Alpha-N and MAF)
  • 300 and 400KPa Sensors
  • Map Sensor Settings
  • Idle Control valves
  • Layout of the Settings Pages in Megatune
  • MegaView
  • Fuel Only Setup, No Ignition
  • Ignition Selection
  • Spark Settings
  • This / Next Cylinder
  • Idle Advance Settings
  • Knock Settings
  • IAT/CLT_Related Ignition
  • Dwell Settings
  • Stim for Wheel
  • Rotary Trailing Ignition
  • Odd Fire Wheel Settings
  • MS1 Tuning Manual
  • Ignition Setup Options
  • Trigger Input Options for V2.2 PCBs (green pcb):
  • Trigger Input Options for V3.0 PCBs (blue pcb):
  • Spark Output Options for V2.2 PCB (green pcb):
  • Spark Output Options for V3.0 PCB (blue pcb):
  • MS1-Extra Quick Guide to Tuning / Datalogging and using MegaTune
  • Hardware
  • MS1 Extra Hardware Manual
  • Knock Detection
  • Mass Air Flow Meters
  • Nitrous (N2O) Control
  • Second O2 Sensor
  • Dual Table
  • EGT Logging
  • Boost Control

  • Technical

    • MS2/Extra manuals

    Configuration and setup for Megasquirt-2, Microsquirt, Microsquirt module and DIY-PNP

    Megasquirt 3

    Megasquirt 3 (aka MS3, MS3EFI) is the latest Megasquirt product offering up to 8cyl sequential fuel and spark.

    See also www.MS3EFI.com

    This section of the manual is under development

  • Initial setup
  • Hardware, Sensors and wiring
  • Configuration
  • New MS3 manual under dev
  • See also the MS2/Extra manual

    • TunerStudioMS

    TunerStudio MS is the MegaSquirt edition of TunerStudio by Phil Tobin, the latest tuning software for Megasquirt. Megalogviewer is used to analyse datalogs.

    Transmission controller

    Alternative firmware that converts your Megasquirt into an automatic transmission controller

  • Introduction

    • Megamanual

    The original Megasquirt manuals.
    Be sure to refer to the MSEXTRA manuals first.

  • Megamanual index

    • MegaSquirt® and MicroSquirt® controllers are experimental devices intended for educational purposes.
    MegaSquirt® and MicroSquirt® controllers are not for sale or use on pollution controlled vehicles. Check the laws that apply in your locality to determine if using a MegaSquirt® or MicroSquirt® controller is legal for your application.
    ©2004, 2009 Bruce Bowling and Al Grippo. All rights reserved. MegaSquirt® and MicroSquirt® are registered trademarks.