neil, not sure how relevant it is, and i know shit all about electrics before you ask but mine sees 14.1 at the ecu according to the secs monitor when its running so based on that fact alone....too low lol
stu, you'll be able to elaborate more on the ecu compensating the fuelling for voltage drop, mine went banana's with the old wiring loom, fuelling at idle was all over the place, voltage dropped a good 2 volts with all electrics on (fuse links smoked and burned out!!). only drops half a volt now since new loom and proper loom fuses. karl did tell me why having a stable voltage was soo much better but im fooked if i can remember his nev like techy waffle