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alternator wiring?

sirtokesalot
in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX

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can anyone tell me how ti wire the newer 3 wire alternator into the 98 2 wire setup? the alternator i have has a black/red - black/yellow - and a blue/red wire on its plug and my car currently has the factory 98 2 wire setup.

I've done the other way. Put a two wire alt in a car that had a three wire. IIRC two of the wires just go to the same place in the fuse box. The other one is from the charge light in the cluster. I don't remember wire colors off hand. Shouldn't be that hard to figure out. Find the charging system wire diagram for the year/model the 3 wire alt came from.

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