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MS not working.

Posted: Sat Nov 23, 2013 5:53 pm
by tigerstripe40
Hello
This is my first post on this forum.

I bought a MegaSquirt v2.2 several years ago, wanting to set it up for a fuel injection system for my 1976 Land Cruiser.
The project, unfortunately, fell by the wayside and other things caught my interest.

I am back on the fuel injection project and wanted to fire up the megasquirt to see what I can do with it.

I initially had the megasquirt and stimulator board working an was playing around with settings. I installed one of the LEDs backwards on the stimulator, and wound up burning the stimulator. Since then the only thing that happens when I plug the stimulator board into the MS, is the D18 LED (middle) comes on for a few seconds -I know that this LED is the warm up LED. It then goes off. I get no action from the stimulator board, no LEDs, nothing happens when I twist the pots.

Thinking I had installed the battery polarity backwards, I swapped the leads and the megasquirt started smoking. I hurriedly unplugged the battery, but by then I couldn't find which component burned...

Let me know if I need to provide any additional information besides what is in my signature. I think the board revision is 1205.

Re: MS not working.

Posted: Sun Nov 24, 2013 1:45 am
by trakkies
The only thing that might be damaged by installing an LED the wrong way round is the LED itself.

Re: MS not working.

Posted: Fri Nov 29, 2013 1:28 pm
by tigerstripe40
I've replaced the LED and put it the right way around.
I'm still not getting anything.

I think I am going to take this all over to my local Make Hackerspace next Wednesday and see if some of those electronics guru's can help.
Just trying to find a place to start.