12.5-12.9v when the engine is running, bad alternator?

[Dylan JZ]

Thanks for that reply, it helped me a lot. I just have to get on it now..

 

[3p141592654]

The stock alternator output wire is connected to the battery, but through a 100A fuse. That fuse protects you from a short circuit in the alternator, or in the alternator wiring. I would be very nervous if my car bypassed that wiring, because then alternator becomes the fuse, and that can lead to a fire.

 

[mikes_88_supra]

no prob thats what were here for. plus i just did this for my 1jz swap.

 

[Poodles]

The stock alternator output wire is connected to the battery, but through a 100A fuse. That fuse protects you from a short circuit in the alternator, or in the alternator wiring. I would be very nervous if my car bypassed that wiring, because then alternator becomes the fuse, and that can lead to a fire.

Or the battery, and then you have a bomb...

 

[Dylan JZ]

Indeed, it's beyond me as to why I never considered the issue..

I have to fix this, but! Is any of this tied to the voltage drop I wonder. guess we will see..