I recently got my megasquirt all together and had it communicating with megatune. Everytime i went to write something to the ecu it said that the voltage was low and I did not have any RPM which i was going to figure out later. After thinking about it, i realized i had forgot to change R4. I went ahead and changed it, while working with megatune it all of the sudden went dead and quit communicating. Now when i plug in a battery to the the stim the lights on the megasquirt flash for an instant and go out. I checked the voltage regulator and i was receiving a little less voltage than i said it should.

Any help would be much appreciated!!!

Ian

 

Check for short circuits or solder bridges around the R4 area where you just soldered.

Ken