Originally Posted by SVT Russ
Voltage shouldn't drop to 12v at idle, unless you have a lot of electrical accessories running. Are your battery cable connections tight and free of corrosion?
i do have two amps running. even w/ no bumping this is still an issue. not sure on the battery connectors but ill check.
update:
so i disconnected both amps and the car seems to be holding 14.4v. even rolling to a stop in neutral my idle holds at 800rmp and then as soon as i stop it kicks down to 500-600rpm @ 14.4v
although my car is idleing lower than usual, the voltage drop and the shitty idle at 200rpm (my engine starts to shake at this point) seems to be when my amps are connected. hmmmm...