Originally Posted by viper_crazy
I replied to another thread that this thread was linked in...but to expand the horizon in an attempt to get an answer...
So, I recommended this upgrade on another thread dealing with the 2015 ecoboost, particularly to solve an Auto Start stop issue where the auto start would not engage because it was charging the battery, and another member said that doing this upgrade was a "really bad idea" and to go read about the battery saver function. His only response when I asked further was "did you read the info?" for which I haven't been able find anything since...which is why I asked further (duuuh). Any one know anything about the Battery Saver system and why this is supposedly a "really bad idea" for the Ecoboost?
I don't see why it would be a bad idea. All you are really doing is lowering resistance in the wires. As long as you replace the wire exactly as it was then nothing negative will happen. I don't know very much about 12th gens or the battery saver system tho. If there is another wire connected to the stock power wire from the battery to the starter solenoid, as long as you splice that wire into your new one every will be all good.