Re: Need Help: Wiring stock battery gauge to one wire alternator.
Reviving an old thread to get more answers -
So I too have a high output one-wire alternator, and I want my alt gauge to work again (I have a volt gauge that works, but just want all my stuff to function). I ran the output straight to the battery, and just set the old battery wire, along with the other two wires in the plug, safely aside in case I needed them again in the future. After reading this thread, I thought that if I took the old battery wire and reconnected it to the one-wire battery post (keeping the direct line to the battery attached), that I could bring the alt gauge back to life. But no such luck. I guess the electricity takes the path of least resistance and flows through the 4 ga direct line to the battery, rather than through the original 12 ga line to the "shunt". Am I correct in assuming that If I replaced ALL of the original battery line in the original wiring harness with 4 ga wire and ditched the direct to battery wire, that the alt gauge should function?
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