low voltage

2011 assault aerocharger turbo getting a low DC voltage code... changer voltage regulator and capacitor out with 3 different ones and still having the problem. have head light deleted, and running A/F gauge, dobeck fuel controler, and LED handlebar light. even with the LED light off and A/F...

I've got an 09 M8 with a BD RG kit. Sled has 4K miles and i installed an Innovate MTX-L AFR gauge but there isn't enough voltage to run it unless i unplug the headlights and intercooler fan, then it works fine. I wired it directly to the red/blue wire coming out of the factory aluminum finned...