Over charging problems

14.5 is only borderline high. The "usual suspects are voltage drop in the harness, and sometimes, drop in the grounding. If the VR receives low voltage to it's IGN (power and sensing) terminal, it will bring the voltage up until that point is at the VR setpoint, 13.8--14.2. THIS MUST BE CHECKED with battery and VR warm and "normalized" IE charged back up after starting. Run engine at fast idle.

To check for harness drop, turn key to "run" with engine stopped. Stick a probe of your meter onto the IGN terminal of the VR (with everything connected normally) and the other probe into the top of the POS battery terminal. If you read more than .3V (3/10 of one volt) check out the circuit. The usual suspects in no order, are bulkhead connector, igntion switch connector, ignition switch itself, and sometimes, the ammeter

To check ground, run engine at high idle to simulate "low to medium" cruise RPM. Check first with all accessories off, and again with them on, headlights, radio, heater, etc

Stab one probe hard into the VR mounting flange and the other into the top of the NEG battery post. You should read almost nothing, and the lower the better, zero is perfect