Megasquirt Manuals - MS2/MS3/MS3-PRO/Microsquirt

This is the index to the Megasquirt manuals and other documentation for Megasquirt. PDFs for offline reading are available.

Click the links to go to the required information. Unsure? What Megasquirt do I have ?

Megasquirt-1 web manuals (Manuals for MS1/Extra.) - Obsolete

--> Megasquirt-2, MS2, Microsquirt, DIYPNP, MSPNP2, Microsquirt-module manuals (Manuals for MS2/Extra.)

--> Megasquirt-3 manuals (MS3, MS3X, including MS3 Gold Box)

--> MS3-Pro manuals (MS3-Pro, MS3-Pro EVO, MS3-Pro Ultimate, AMPEFI)

EMS-Pro manuals

MegaStim/JimStim information


Manuals for Microsquirt Transmission control and Microsquirt-IO box are available through their product pages.

The original ‘MegaManual’ should only be used for the alternative “B&G” MS1 or MS2 firmwares. Link here. The vast majority of customers should not use it as you will find the information misleading and confusing – use the manuals from this current site.

Background information

Megasquirt 11bit CAN broadcasting protocol, including dash broadcasting PDF.
Download .DBC protocol files : Dash Broadcast DBC file or full Realtime Data Broadcast DBC file.

Megasquirt proprietary 29bit CAN protocol PDF