The MegaSquirt Project has experienced explosive growth other the years, with hundreds of new MS installations occurring every week - a phenomenal success! MegaSquirt has been successfully used in all aspects of Internal Combustion engine applications including R&D, Industry, Race, and Research. The MS project has transformed itself from a simple R&D project into a full-featured mature engine control system. To reflect this the support structure has also changed to meet the needs of MegaSquirt Users.
Moving forward, the R&D forums for MegaSquirt project are in a read-only mode - no new forum posts are accepted.
However the forums will remain available for view, they still contain a wealth of information on how MegaSquirt works, how it is installed and used. Feel free to search the forums for information, facts, and overview.While the R&D forum traffic has slowed in recent years, this is not at all a reflection of Megasquirt users, which continue to grow year after year. What has changed is that the method of MegaSquirt support today has rapidly moved to Facebook, this is where the vast majority of interaction is happening now. For those not on Facebook the msextra forums is another place for product support. Finally, for product selection assistance, all of the MegaSquirt vendors are there to help you select a system, along with all of the required pieces to make it complete.
I got my NA 1990 running last night. The guys over on the miataturbo.net forums helped me out a lot. They have a section devoted to MS. I started with the MegaMiata pinout found here from MX5KC. I am running it piggyback to the stock ECM and running fuel only. I am using a GM IAT and the stock Mazda coolant sensor. I messed around with EasyTherm for a while, but found that using the standard 2.49K R7 resistor and the standard values for the GM sensor are close enough for me right now. Getting it running is more important than messing with accurate coolant readings IMHO. I initially spliced the blue/yellow tach wire to pin 24 on the DB37 with a 1K ohm resistor, but it still took away my factory tach signal. I guess if you use more 1K ohm resistors, that should do it, but they talked me into making the input board mods and hooking it to the stock CAS (cam angle sensor). So I had to load MSnS, but they walked me through it. If you go over there, read a thread called "Unsuccessful first attempt". I haven't even started tuning yet, but I couldn't wait to post this here. I built my MS over a year ago and just now got around to installing it, so this has been a long time coming!