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Old 04-20-2008, 02:23 PM
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Quote:
Originally Posted by MCOULTER View Post
I am replacing my Smith's amp guage with a Smith's voltmeter in SPF 2301. My amp guage currently has 2 red wires coming off of each of the 2 terminals. My volt guage requires requires 1-fused ignition wire and 1-ground wire. How do I tell which of the two wires on the amp guage is the fused ignition wire? What do I do with the remaining unused red wire? Is there a comon ground connection near this location?
Connect BOTH wires that are currently going to your ammeter to the positive side of your new volt meter. Connect the negative side of your volt meter to a good ground. Don't worry about the "fused" business unless you want the guage not to read when the car is off (not having an SPF wiring diagram in front of me). In that case, just feed the positive from anything that is turned "off" when the key is off.

EDIT -- Don't forget there's usually a feed for the little background light.

Last edited by patrickt; 04-20-2008 at 02:30 PM.. Reason: Remembered the little background light.
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