Altenator wire question after tpi swap - Third Generation F-Body Message Boards

Iroc-Dennis · 10-15-2009, 04:28 PM

hello all

i have a question about the 3 wire altenator!

it has 3 wires

S F L P

S: Red ( to constant 12v)
F: Tan/White ( go from 1 wire to 2 wires to the fan relay and plug)
L: Brown ( ignition 12v)
P: xxxxx

so now i have splice the hole ecm wiring
and now there is one wire left from the altenator and that`s the Tan/White wire thats come from the altenator!

what must i do with this wire?
must or can i use it for anything?
or is it like a 2 wire plug altenator now?because i don`t have the tpi anymore.

Dennis

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327sleeper88 · 10-18-2009, 02:22 AM

the tan/white wire is the regulator turn on switch. that wire needs to get power from the ignition, or your alternator won't pump out any juice.

Iroc-Dennis · 10-18-2009, 03:23 AM

thanks ,but are you sure?
beacause i know the brown wire comes from the ignition to power the altenator!
i tought firts that the tan/white wire a sort off power wire was for the fans!

but oke i will believe you!
so i can hing that wire together on the brown wire?

dennis