Voltage DC to the fuel pump
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Joined: Sep 2005
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I'm guessing 12. I'm not too familiar with the subject, but I'd see no reason why there'd be a resistor dropping the current down (especially on an electric motor). It also makes sense to have a full 12 because I don't think anything less would power the motor up to 40ish psi. Like I said, just a guess, but logic says 12. Maybe someone will have a definite answer via a schematic, or tonite I'll try to climb under mine and measure myself.
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Joined: Jul 2004
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From: Easton, Pa.
On a two pipe system the feed is full 13+ volts thru a relay. The pump can produce pressures over 100 psi . The fuel regulator drops the pressure to the injector fuel rail to 39psi +/-.
On a single pipe system the feed is varied using a pressure tranducer and control circuit.
On a single pipe system the feed is varied using a pressure tranducer and control circuit.