My 1995 mustang GT dies while idling

[CAH95GTS]

My 95 gt idles funny when first started and voltage drops when idling and when accessories are turned on dies when stopped at red lights but if I keep the rpms up it will stay running please help

 

[General karthief]

You may have a charging problem, have the alternator and the battery checked.

 

[CAH95GTS]

Would that cause it to read error when hooked up to the scanner to check codes

 

[General karthief]

Now that I don't know.

 

[RaggedGT]

Obd 1 car, the Obd 2 plug under the dash is non functional (only functional in the Sixxer models)

 

[CAH95GTS]

That plug worked for just recently started saying error that plug to figure out my pickup sensor in my distributor was bad the first time