Un-converting a Powermaster swap

Jarlaxle said

PO rewired the engine bay and installed the awful 1-wire setup (Powermaster 75191), I'm not sure if it's an aftermarket harness or he did it himself. (I think the latter, going by the receipts I have.) The stock wiring looks fairly simple to redo, if necessary-assuming I cannot find a stock harness.

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Does it still have the factory bulkhead connector? If it does your best bet is probably just to buy a new engine harness and not worry about sorting out all the PO’s shenanigans.

There’s nothing wrong with 1 wire set ups. It does the same thing as the external voltage regulator, the voltage regulator is just internal. And power master alternators are decent too, I have a standard external voltage regulator version on my Challenger that was there for most of the 70k miles on that car. And I had a standard one on my Duster up until I installed a much improved American Autowire harness, which required a 1 wire alternator. So now it runs a 1-wire power master.