having issue with what i thought was alternator/regulator. Under rpm higher than idle the alternator charges around 17 volts. replaced the regulator, same thing. ditto for alternator and battery. along the way used hand held voltmeter to confirm that guage wasn't the problem. where else to look?
Check the ground on the regulator and the alternator as well. A bad ground can cause the regulator to malfunction.
--scott
It's been a while, buy iirc that regulator can be adjusted to control the max output of the alternator. HTH, s
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