How high? .. Sounds like you need a ecu reflash or a new ecu . Check if there is any tsb's on the charging system
That ecu should have the voltage reg in it and I have seen them fail ... Look on line there is a way to put a external regulater on it , but will cause a engine light, It will you by until you get a ecu
. Snow wheeling is not a crime !
alcohol makes me the man i need to be !!! spudspudspudspudspud 2013 !!!