- Sep 26, 2007
- Inland Empire, Southern California
My alternator is overcharging charging at higher revs increases to around 15 volts. I decided to replace the alternator from CityRacer and a new Toyota volt regulator and I still have the over charging issue. I checked the wiring and they match the OEM diagrams. The battery is fully charged. Previously I had destroyed a battery because of this same issue. Cannot seem to figure out how to fix this. Any ideas?