Alternator wiring question
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From: the not so stock tribe
Alternator wiring question about to start the notch and noticed i forgot to connect the ls1 alternator.
i have the positive terminal ( thick wire) going ot the junction block but the small lead wire is just dangling there.
where is that wire supposed to go? is it a "alt. charging" warning light lead?
any idea where is the old alt. small wire supposed to be on a '92 fox harness??
i have the positive terminal ( thick wire) going ot the junction block but the small lead wire is just dangling there.
where is that wire supposed to go? is it a "alt. charging" warning light lead?
any idea where is the old alt. small wire supposed to be on a '92 fox harness??
On The Tree
Joined: Apr 2005
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From: S. Philly
Hope this info can help you out.
http://www.cardomain.com/ride/2079260/5
Sorry I don't have info on the wires from your stang.
http://www.cardomain.com/ride/2079260/5
Sorry I don't have info on the wires from your stang.
Joined: Sep 2004
Posts: 3,148
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From: Downers Grove, IL
Is the small wire that is hanging a brown wire that goes to terminal L of the alt? Also what year computer/wiring are you using? I believe that only the 98 computers don`t control the alt, if it is 99 or newer you can just connect it to the computer. If it is a 98 then you need to connect the brown wire to an ignition hot wire through either a 500 ohm 1/2 watt resistor or through a small light bulb (ie: a 194 style light).
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From: the not so stock tribe
thanks guys,
G-body, the alternator i'm using is not an Ls1 specifiic alt. as far as i know. ( ls1 alt's are in such high demand here ( they are pricey - around $420 to $480 new) that you can't even find them in junk yards). so the one i have is a gm one as far as i know but it has a two wire connector , one goes to the positive terminal on the batt and the other just has a wire hanging waiting to be connected.
the wiring harness i have is a speartech unit and doesn't seem to have a wire to connect to the alt.
so could this wire be the trigger for the charge light?
G-body, the alternator i'm using is not an Ls1 specifiic alt. as far as i know. ( ls1 alt's are in such high demand here ( they are pricey - around $420 to $480 new) that you can't even find them in junk yards). so the one i have is a gm one as far as i know but it has a two wire connector , one goes to the positive terminal on the batt and the other just has a wire hanging waiting to be connected.
the wiring harness i have is a speartech unit and doesn't seem to have a wire to connect to the alt.
so could this wire be the trigger for the charge light?
Joined: Sep 2004
Posts: 3,148
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From: Downers Grove, IL
I think the second wire is the trigger for the charge light. Does the alt have a 2 wire connector and a main post on the back? If it does then the wire that is hanging is for the charge indicator. If not, I have not seen a GM alt like it yet.
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Originally Posted by G-Body
Is the small wire that is hanging a brown wire that goes to terminal L of the alt? Also what year computer/wiring are you using? I believe that only the 98 computers don`t control the alt, if it is 99 or newer you can just connect it to the computer. If it is a 98 then you need to connect the brown wire to an ignition hot wire through either a 500 ohm 1/2 watt resistor or through a small light bulb (ie: a 194 style light).
Check out Turbomustangs.com for help with Fox body questions- they are a helpful bunch, and even have a GM section on their forum.
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Joined: Nov 2001
Posts: 1,707
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From: Anderson, Indiana
Originally Posted by 1dirtyZ
thanks guys,
the wiring harness i have is a speartech unit and doesn't seem to have a wire to connect to the alt.
the wiring harness i have is a speartech unit and doesn't seem to have a wire to connect to the alt.
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91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
Joined: Nov 2001
Posts: 1,707
Likes: 33
From: Anderson, Indiana
Originally Posted by 1dirtyZ
.....also running a T.P.I.S harness and a 99 camaro pcm and tune
__________________
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com