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Re: Fuel gauge polarity?

To: Wiedemeyer <boxweed@thebest.net>
Subject: Re: Fuel gauge polarity?
From: Frank Clarici <spritenut@Exit109.com>
Date: Mon, 28 Jun 1999 18:10:04 -0400
Cc: Doug Ingram <dougi@home.com>, spridgets list <spridgets@autox.team.net>
Organization: Positive Earth Drivers Club
References: <001e01bec161$bc6e8260$881a7ccf@default>
Reply-to: Frank Clarici <spritenut@Exit109.com>
Sender: owner-spridgets@autox.team.net
Wiedemeyer wrote:
> 
> Yeah.  Just reverse the wires when attaching them to the gauge.
> 
> Bob
> -----Original Message-----
> From: Doug Ingram <dougi@home.com>
> To: Spridget List <spridgets@autox.team.net>
> Date: Monday, June 28, 1999 1:14 AM
> Subject: Fuel gauge polarity?
> 
> >A question for those with superior electrical knowledge:
> >
> >My car is wired positive ground, my friend's Mk II is wired negative
> ground.
> >If I removed my fuel gauge from my car, and installed it in his car, would
> >it work, even though the polarity of the cars are different?

Doug

Yes it will work but DO NOT REVERSE THE WIRES!!!!
Reversing the wires will send power to the sending unit and fry it. 
(been there, done that)
The sending unit is a variable ground (exact termination by electrical
gurus on this list) The gauge works by running the hot (any hot, pos or
neg) to the "B" (battery) terminal on the gauge, The "T" terminal is for
the tank.
If you flip the wires on the gauge you send 12 volts to the sender which
is grounded + connected to - = smoke!
The gauge doesn't care what ground it has just make sure the terminal
marked B gets the solid green wire.



-- 
Frank Clarici
Toms River, NJ
Bugeye Sprite
67 Sprite
59 A40
http://www.exit109.com/~spritenut/

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