3G installed???exciter wire voltages?? - Ford Mustang Forums : Corral.net Mustang Forum
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post #1 of 1 Old 04-29-2011, 12:55 PM Thread Starter
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3G installed???exciter wire voltages??

1992 GT

I did intall a full autometer/florida 5.0 gauge package. I did just install an inline 500 ohm resistor on the dark green wire from the dash to the exciter wire of the alternator. At the dash, the dark green wire is jumped over to the switched 12 dash feed wire. The alternator is bolted in, huge ground, 2ga, from the alternator to the battery. Battery fully charger 13v not running.

I tested the voltage at the post, and the yellow wire on the d plug of the alternator- unplugged same as battery and the charging post 13v. The exciter wire is dead with the key off, and 12.7 to 12.8v when key is on, engine not running. When I plug the d plug in, and turn the key to on, no engine running, the green exciter wire still reads the 12.7-12.8v. I am told it is supposed to read around 3 volts??? Why is this, and what could I be missing, or is there something else more in depth thats wrong maybe with the alternator here.

68 Mustang FB, Eleanor body kit, pepper gray, TCI full chassis frame cradle, 9 inch w 3 link, torque arm, panhard bar, coil overs, wildwood brakes. 427 dart CHI 3v heads, intake
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