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Old 07-20-2010, 08:24 PM   #173 (permalink)
RobertSmalls
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Join Date: Aug 2008
Location: Buffalo, NY, USA
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Prius C - '12 Toyota Prius C
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Oh yes, those brutal Florida winters.
Yeah, I know there's a mpg hit, but I guess I'm jealous you can run Potenzas year round.
Quote:
Originally Posted by Artric View Post
Since I already have the 12v connected to the fan (positive and negative), I'll just run the positive over to that pin then? Or do I need to also run the negative to a ground point? Sorry this is probably a stupid question.
Dunno. Measure from your negative rail to chassis ground with an ohmmeter. If the fan's negative is grounded, then you're good.

Quote:
Originally Posted by Daox View Post
What about just wiring a 12V power supply (wall wart) to the fan, so when you plug in the fan turns on.
That's the safe thing to do. The only possible downside is a cold battery during the winter. Once I put my MIMA together, I may try to power up its fan controller while grid charging, to turn on the fan at 120°F.
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