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.
Forum rules
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Ok I have been trying to read all I can about how to control the GM style IAC. I have it all wired up right from what I can tell but all the changes I make to the idle steps table don't seam to change idle rpm. I had it all the way down to 0 and all the way up to 255 for the temp I was at without any luck of change the idle speed. I read some place that you need a H bridge circuit for this now does the MS2 V3.o have this built into the board or do I need to build it in the proto section and wire it in?
MS2 V3.0
92 Saturn SC2 Vortech V1 A Trim
98 Saturn SC2 DP Nitrous
Chripsle...mine did work, WHen I had it. you just need to hook the circuit up right. I didn't use a bridge. There appeared to be a probelm with the older codes where after a minute or two the IAC would just stop working...thry the latest 2.3x code and see if that helps out.
I'm running 2.6 something. If I remove it while the car is running it's going to rev up really hi. Is there a way to check to see if it's working without the car running?
MS2 V3.0
92 Saturn SC2 Vortech V1 A Trim
98 Saturn SC2 DP Nitrous
Get an extra one and just plug it in...have someone cycle the key and watch to see if the indle moves. I know those IAC's are a PITA to get out without removing the tbody, so try to find and extra.