MegaSquirt-3 PCB3.0 UnAssembled Kit

This includes the case and everything for the main board including jumper wires. Other add on boards that you can use with the MS3, such as the MS3X expansion board, knock module, and real time clock module, are sold separately.

Most components have a -40 to +85 degrees C rating at a minimum - the main exceptions are SD cards and, if you're using a real time clock module, the battery for the clock module. But the SD card and real time clock are not "mission critical", if you're entering a Siberian rally.

You'll need to Locktite all internal fasteners to avoid vibration, and clamp the wiring harnesses to the body about 15 cm from the backshell exit.

If this is something like a trophy truck or similarly extreme use, consider an MS3Pro EVO.

Somewhere in the trashcan of MegaSquirt history. An early bill of materials for the V3.0 board used a different part for Q16 which required a pull-down resistor on its input pin. The VB921 that was originally used for Q16 in early production V3.0s, and the later BIP373, do not require this. Consequently, no standard build guide or bill of materials for the V3.0 board has ever called for anything in the R57 slot.

MS3 solves this problem by using six individual spark outputs and skipping the two EDIS modules.

Yes, the MS3 can run this engine - including VANOS with the right mods. You will need to convert to a cable operated throttle body, and if using the BMW coils, you'll need a pair of QuadSpark ignition modules.

TunerStudio Lite is a free download, available at this link. You can purchase the registered version from the TunerStudio site at the "Register Online Now" page. Currently, only ECUs in the MS3Pro family (MS3Pro EVO, MS3Pro Ultimate, and MS3Pro PNP) include the registered version; for all other ECUs, this is sold separately.

Yes. It would communicate with the MicroSquirt over the CAN bus. You just need to run two wires during assembly to bring the CAN connection to the DB37 connector.

You will need to add the MS3 knock module kit to best make use of a knock sensor, and I would also recommend the MS3X expansion board. The MS3 also supports vehicle speed sensor input.

We include a solder cup DB37. The RS232 and USB cables are sold separately - as an off the shelf cable is fine for the communication side of things, we don't sell solder cup DB9 or USB connectors.