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.
For discussing how to choose sensors and create a wiring harness for all Bowling and Grippo versions of the MegaSquirt® EFI controller.
Forum rules Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
I plan on switching my IAC to GM with an adaptor but is there a specific reason why a lot of the members switch to GM water and air temp sensors? I am considering doing it but is the code more readily accessible or originally intended for one format over the other? I am making the IAC change to avoid eliminating a few circuit changes and ease of installation. I have no opinion on which is better and not stating any opinion just wondering any benefits to standardizing all my sensors.
Jason
Mostly because they're widely available and cheap, and the original MS1 was not easily recalibrated for anything else. EasyTherm makes that a bit easier, and the MS2 makes it really straightforward. The standard bias resistors give pretty good resolution and a couple sensor types that are way far away from GM resistance values can benefit from a bias resistor swap (Mazda RX-7s come to mind).