High Charging Voltage

[money pit]

I installed a electronic ignition conversion kit from Mancini Racing. I noticed when the engine is cold (fast idle), the system is charging at 18 volts. When the idle comes down, it charges at 15 volts. Before the conversion it was charging a little under 14 volts. I grounded the ECU directly to a ground from the battery. If I need to change the voltage regulator should I go to source like Classic Industries, Year One, etc. or go to an auto parts store.  Thanks.

[Bullitt-]

 I'm thinking your wiring to the voltage regulator has been compromised. If the blue wire is not seeing full battery voltage the voltage regulator will call for more than is needed.
Cudajason solved his issue recently, his appears to have been with the green wire going to the alternator.  https://forum.e-bodies.org/electrical-and-audio/11/-over-charging-issues-battery-issue-update/22970/msg276788#msg276788

[dodj]

Check ALL your connectors for a good resistance free connection before buying any parts. The ebody charging system is susceptible to overcharging the battery from poor connections. In particular the B/H connector

[money pit]

I'll take a look at the link. I'll have to look at the schematic. About six months ago I bypassed my ammeter. I haven't had any problems until I installed the electronic ignition. I connected the wire from the electronic ignition to the power side of the resistor. I changed the voltage regulator, getting, 15 volts. Thanks.

[money pit]

I don't have any bulk head connections. I bypassed the ammeter and ran the wires through the fire wall. I'll have to see if there are any other connections that go to the charging system.  Thanks

[MoparLeo]

https://www.youtube.com/watch?v=F04fkFc9SNI

[money pit]

I replaced the connector to the electronic ignition. The voltage dropped back to 12 volts. Now it doesn't look like it's charge at all. The voltage at the electronic ignition and the voltage regulator is 11.8 volts. There is continuity between the wire to the ballast resistor  for the electronic ignition and the blue wire of the voltage regulator. I traced the wires to the bulk head connector. I'm going to try to clean the connections. I looked at the link you sent. I will also use this as a guide in trouble shooting.  Thanks.

[dodj]

Well the ECU doesn't control the system voltage, but it's close to the vr which does. Maybe  when changing the eco connector you disturbed the vr wires? Bullitt suggested vr wiring and seeing as you were working the wires in that area it seems possible. Check the grounding of the VR as well.