CHARGING SYSTEM PROBLEM!!!!!!!!!!

[StangzRUs]

Hi i have a stupid problem, with my car off battery voltage is 12.4 volts and the when its running i have a voltage of 12.2 volts and it drops and keeps dropping and when the car is shut off and eventually when u shut the car off it wont start and will need a boost, but if u let it run for a short time if the voltage says 11.2 and then u shut it off the battery goes back to 12.2, and i followed all of the steps in trouble shooting the alternator. The alternator is brand new and has been tested by two different people and the battery is also good.

With the engine off, ignition off, I have battery voltage of 12.2 at the black/orange wires and battery voltage at the yellow/white wire. there is continuity in the white/black wire.

With engine off/ ignition on, the amp light glows. so i disconnected the harness and have 12.2volts at the connector with the green/red wire, reconnected the harness and probed the connector and have 3.7 volts.
Start the car and the voltage is 12.2 and drops.

please help me im banging head off the wall!!!!!!! Thanks,

 

[HISSIN50]

This is a stock 2G with stock wiring?

Your testing looks pretty good to me.

When you tested continuity in the stator loop, you disconnected both harnesses and tested both ends of the wire? You saw about 0.1 Ohm?

How thorough were the bench tests on the alternator?

I'd try feeling the fusible links for the charge wires. See if they are gooey.

 

[StangzRUs]

yes stock 2G wiring and yes with the connectors disconnected i saw 0.1 ohms. the alternator was tested by two different places and they both said its fine. I looked all of the wiring including the fusible links and everything appears to be ok. This is getting frustrating!!!!!, thanks for the help