[rainbowzootsuit]

Shout-out to the OG of open and DIY engine management systems: MegaSquirt.

https://megasquirt.info/history/

http://www.megamanual.com/MSFAQ.htm

I participated in the Yahoo group where the early development of this happened and had a car that my friend and I retrofitted. Bowling and Grippo deserve all the credit due for making this in a free and open spirit.

The original way one made the kit is to order a board in a group buy, and import a BOM .csv file to digikey to put together your own parts kit. It looks like you can mostly still do the same today.

[geocrasher]

I got interested in MS and ended up doing a deep dive on fuel injection in general, learning the different types (TBI, MPI, etc) and the different sensors involved (MAP vs MAF and the like) and really just soaking it all in.

Around that time a friend was having car problems. He described the symptoms to me. I looked up the type of fuel injection used on that car, which sensors it used etc, and recommended they replace a specific sensor, without ever having even seen the car- all based on my knowledge from Megasquirt. I found out later that it worked, the engine ran much better. It's amazing what a bit of open source knowledge can do :)

[rainbowzootsuit]

Yeah back then on the forums people were running just the total gamut of everything gasoline internal combustion with MS [0] and living the dream. Chainsaws and string trimmers [1] up to 2-bar turbos with water injection to inhibit detonation [2], and lots of Jaguar V12s [3]— peak internet.

I think I still have a spare MS hotwheels sticker around somewhere. [4]

[0] http://www.msruns.com/index.php

[1] http://www.msruns.com/viewtopic.php?t=22666

[2] http://www.msruns.com/viewtopic.php?p=145732

[3] http://www.msruns.com/viewtopic.php?t=20086

[4] http://forum.diyefi.org/viewtopic.php?t=1706

[ehnto]

I have never used a megasquirt but I was always rooting for them. We also had an underdog here in the form of Nistune, it was and still is just a bloke in his garage.

I have to support my locals though, Haltech and Link. They have a recent video on the Haltech YouTube channel of a tour of their facilities. It's no Toyota factory line, but feels very pragmatic and I love that they still do it in house.