[brucepick]

I'm interested in using an external regulator and the capacitor(s). I could put them under the dash or in the engine bay.

dcb,

Can you give some details on the capacitor(s)? I'm guessing they are wired across the + and ground, both before and after the regulator?? What rating caps?

And how to read the three "legs" on the regulator? I've seen pics of them but don't see markings I understand.

I put the suggested 8 ohm resistor in line with the 12V power. It does help the Guino stay reasonably cool.

However, after serious EOC, I've seen the Guino reset itself. (Gallons used etc. go to zero, and the Guino goes to the home screen which I think is "Custom".) I'm theorizing that with battery power dipping into the 10V range or lower, the 8 ohm resistor is too much, and it doesn't get the power it needs.

Thanks!