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1g Alt wont charge battery

Dsm alaska 907

Probationary Member
4
0
Jan 16, 2021
Sutton, Alaska
So i just got this 92 talon tsi awd and the alternator won't charge the battery, yes im sure the alternator is good. The 80 amp fuse is good in the fuse box. The battery light on the dash is on and had some messed up wires coming off the alternator, and the battery is relocated to the trunk. Any suggestions? I was thinking about redoing the wiring for the battery relocation but I'm not sure if thats the problem.
Anything helps im out of ideas!
 

Dsm alaska 907

Probationary Member
4
0
Jan 16, 2021
Sutton, Alaska
So i just got this 92 talon tsi awd and the alternator won't charge the battery, yes im sure the alternator is good. The 80 amp fuse is good in the fuse box. The battery light on the dash is on and had some messed up wires coming off the alternator, and the battery is relocated to the trunk. Any suggestions? I was thinking about redoing the wiring for the battery relocation but I'm not sure if thats the problem.
Anything helps im out of ideas!
Forgot to mention it also breaks up in boost
 

motomattx

Proven Member
3,296
1,199
Dec 9, 2010
wampum, Pennsylvania
If its not charging its likely going to break up, fix the charging issue first before biting off any more. I suggest that you run all new wires to the battery from the fuse box and a new wire from the fuse box to the alternator, AND you need a fuse at the battery so that you dont burn the car or anything else down.
 

Dsm alaska 907

Probationary Member
4
0
Jan 16, 2021
Sutton, Alaska
Is that all the charging system really is in these cars? Alternator to the fuse box where the 80 amp fuse is then to the battery?
 

Vegas Smith

Proven Member
4,268
2,106
Dec 2, 2002
Houston, Texas
Is that all the charging system really is in these cars? Alternator to the fuse box where the 80 amp fuse is then to the battery?
Yeah, that sounds about right. Also, the charging system won't work if both the alternator relay (in the left-side fuse box) and the charge light in the dash are messed up. It will charge if just one of those works.
 

steve

DSM Wiseman
13,677
774
Feb 3, 2002
Boulder, Colorado
The FSM suggests that if the charging indicator in the gauge cluster fails to turn off once the engine started to check the IC Voltage Regulator inside the Alternator. (which usually means replace the Alternator)

1GAlternator.PNG
alt1.jpg
 
Last edited:

Dsm alaska 907

Probationary Member
4
0
Jan 16, 2021
Sutton, Alaska
Thank you guys ill look into this after work open to all suggestionsh
 
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