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. 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).
Hello all, I just completed my first M/S build. I have a M/S 2, V 3.0 board and a Jim Stim V 1.5. Theres only a couple things I cant figure out. I have it set up to run EDIS, but I am not getting any ignition lights on stim but I am reading RPM. Just no blinky. Second, I get no light on the Idle circuit which is set up for PWM, I'm using a Tip120 in place of Q4. The TIP I had laying around so, theres a possibility it is bad, but how would I test it?
93' Fox Body hatch, 5.0, gt-40 heads, gt-40 intake, MS2 in progress, HE351 turbo in progress
88' F-150 DD, 5.0, cammed, ported, polished, 4:10's, built AOD, 33's
Ah, the ign jumper I did not do. I havent found much info on jumper placement for this stim yet, or am i just not looking in the right places. Also, how do I post my MSQ file?
93' Fox Body hatch, 5.0, gt-40 heads, gt-40 intake, MS2 in progress, HE351 turbo in progress
88' F-150 DD, 5.0, cammed, ported, polished, 4:10's, built AOD, 33's
Ok, I'm about 80% sure I got the PWM idle control hooked up as per the directions, but I have no lights on my stim verifying it. Should the Fidle light flash with response to Hz and duty cycle on my tuner studio? If so, I've tried several combinations. And heres a copy of my msq.
Oh, and I know theres a big spike in the PWM for idle, thats because I was hoping If I put a 100% in there and dialed my coolant temp into that place that maybe the light might come on for me. No luck though.
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93' Fox Body hatch, 5.0, gt-40 heads, gt-40 intake, MS2 in progress, HE351 turbo in progress
88' F-150 DD, 5.0, cammed, ported, polished, 4:10's, built AOD, 33's
Matt Cramer wrote:It should be full on at 100% duty cycle. It won't respond quite as much to Hertz.
Is there a chance my TIP 120 is shot? If so, I spose Ill go grab a new one from frys. I'm 90% sure I hooked up the wires from the Q4 slot to the TIP right. Do I need to Jumper D8 or leave it empty as I have it now? I have to get this working within the next day or so because I'm going to the test stand this weekend and gotta be able to fire my 5.0 before I drop it in the car. Thanks so far Matt.
93' Fox Body hatch, 5.0, gt-40 heads, gt-40 intake, MS2 in progress, HE351 turbo in progress
88' F-150 DD, 5.0, cammed, ported, polished, 4:10's, built AOD, 33's
I have a M/S 2, V 3.0 board and a Jim Stim V 1.5. Theres only a couple things I cant figure out. I have it set up to run EDIS, but I am not getting any ignition lights on stim but I am reading RPM. Just no blinky. Second, I get no light on the Idle circuit which is set up for PWM, I'm using a Tip120 in place of Q4. The TIP I had laying around so, theres a possibility it is bad, but how would I test it? 
