Awesome thread!

I have an issue where my voltage only comes up to 13v while running. They van barely has enough juice to start. Earlier in the week it started fine but died on the hwy due to low battery.

My battery is newish, and tested good. The alternator is 1 year old and tested good.
Did I read somewhere that the ECU is used for Voltage regulation?????
Maybe I'll run a wire from the sense terminal to the battery.

Other ideas?