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TXcoupe
petrol head


Joined: 05 Oct 2001
Posts: 1675

PostPosted: Sat Apr 26, 2003 11:05 pm    Post subject: Fuel pump Reply with quote

A while ago there was post about fuel pump running at 7.2 volts. The fuel pump runs off a relay that is activated my the alternator, The alternator has a feed off it that has 7.2 Volts this line goes from the alternator to a relay that switches on a 12V feed to the fuel pump. IF ur running out of fuel htne it is time to upgrade ur internal tank pump or run a external pump such as a holley or carter or a no name brand electric pump.
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tx1975
tinkerer


Joined: 21 May 2002
Posts: 321

PostPosted: Sun Apr 27, 2003 11:39 am    Post subject: Re: Fuel pump Reply with quote

my fuel pump runs on about 13 volts,
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Ben Wight
backyard mechanic


Joined: 04 Oct 2001
Posts: 946

PostPosted: Mon Apr 28, 2003 3:52 pm    Post subject: Re: Fuel pump Reply with quote

Hey Dave,

I've measured the voltage on a couple of cars at the fuel pump power wire and it was only around the 8 volts mark. Do you know if the relay feeding the fuel pump is original? If so, has it undergone a re-wire to relay 12V instead of 7-8V??
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TXcoupe
petrol head


Joined: 05 Oct 2001
Posts: 1675

PostPosted: Tue Apr 29, 2003 12:54 am    Post subject: Re: Fuel pump Reply with quote

was the car running?
yeah the relay is orignal i would find ur relay box and see
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