MSefi.com read only forum (Jan.15,2018)

Is there a way to check the megastimulator to see if I built it correctly? I have looked and can't seem to find anything?

Thank You. I think I built the stimulator properly, I just thought it would be nice to check it.

is there a link to where it shows what the Stim is supposed to do when hooked up to my MS and turning the knobs. IE: and explanation on which led's light up when?

I think it would be a nice feature for the next revision of the stimulator to add some (optional to install) self-diag indicators. A single LED to function as a heartbeat from the timer circuit would be nice - even better would be one that blinked at a frequency that varied according to the RPM pot. Yes, this can be done with the LED probe, but for the added cost of components it might as well be built into the board. A low battery LED might be a worthwhile addition too.

The recommendation is for newbies to build the stimulator first, but the stimulator doesn't do anything unless it's plugged into a MS. The heartbeat or RPM LED would at least give some indication the stim is doing something. The low battery LED would just be a handy thing for those situations where someone is trying to troubleshoot a problem, but they're forced to run the stim off of battery.

Nevermind, I was just taking the documentation the wrong way.

I'm still at info. gathering stage (hav'nt bought anything yet), but I did built a signal generator as a small electronics projet.

The way I used to test this (and how any electronic device should be tested for all I care) is with an osciloscope.

The one I used, can be bought for about $100, it's a software that uses your PC's sound card to interpret signals, it has two channels and is plenty accurate for automotive grade electronics.

Check e-bay or do a google search for PC osciloscope... You can't miss it.

I'm looking for assembly instructions, picture, or anything to help me assemble stimulator v1. My board says" EFI332 stimulator Board v1 jsc" Any help appreciated.

Nolan woodfin,

That's a very old stim designed for another EFI project that predates MegaSquirt (though EFI332 did involve Bowling and Grippo and others). So it is at least 15 years old, and was only produced well before documentation efforts began on MegaSquirt. As a result it has never been supported here.

If I were you I and I couldn't get your stim to work by examining it and experimenting, I would probably purchase a newer supported stim designed for MegaSquirt controllers.

Lance.

Thanks for info, Lance. I kinda figured something like that. I agree with your suggestions. I printed the schematics for v2. Thanks again.