 New Fuel Pump! No power... |
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| slim72914 |
 Oct 1 2008, 09:40 PM
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#1
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Member  Group: Members Posts: 153 Joined: 4-July 07 From: Mesa, AZ Member No.: 7,874  |
Hey all. I recently finished my new fuel pump install and relocate to the front under the fuel tank. Got it running and all tuned in and then it just stopped pumping... No power. I checked the factory wires where I tapped in to them to extend the wiring to the front and there is no power even before the area where I soldered my connector in. Is there an easy way to check the relay? I tried switching it with one of the other ones in the board (dont remember which one but it had the same part#) and it still did not turn the pump on. Any help??? Thanks all.
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| r_towle |
Oct 1 2008, 09:41 PM
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#2
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Custom Member Group: Members Posts: 24,650 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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turn on your headlights.
If the headlights go up and down, use one of those relays. Also, on the relay board are two fuses, check that those are good. Rich |
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| slim72914 |
Oct 1 2008, 09:52 PM
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#3
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Member Group: Members Posts: 153 Joined: 4-July 07 From: Mesa, AZ Member No.: 7,874 |
Nice! put new fuses in... Fuel pump comes on! 8A and 25A sound right for the two in the relay board?
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| swl |
Oct 2 2008, 06:12 PM
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#4
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Senior Member Group: Members Posts: 1,409 Joined: 7-August 05 From: Kingston,On,Canada Member No.: 4,550 Region Association: Canada |
Those are the correct fuses but it is the 25 that is associated with the fuel pump. I've never been able to figure out what the 8 amp was for. It only shows in early wiring diagrams and seems to be wired to pin 9 of the 12 pin plug. None of the wiring diagrams (at least that I have found) show anything attached to 9 so it must be an option. Maybe aircon or sportomatic? In any case you probably don't need the 8.
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| dbgriffith75 |
Oct 2 2008, 10:12 PM
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#5
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TheGrif Group: Members Posts: 509 Joined: 25-July 07 From: Iowa, USA Member No.: 7,945 Region Association: Upper MidWest |
QUOTE Those are the correct fuses but it is the 25 that is associated with the fuel pump. I've never been able to figure out what the 8 amp was for. It only shows in early wiring diagrams and seems to be wired to pin 9 of the 12 pin plug. None of the wiring diagrams (at least that I have found) show anything attached to 9 so it must be an option. Maybe aircon or sportomatic? In any case you probably don't need the 8. Correct me if I'm wrong, but isn't the 12 pin connector the power supply to the board? |
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| swl |
Oct 3 2008, 07:37 PM
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#6
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Senior Member Group: Members Posts: 1,409 Joined: 7-August 05 From: Kingston,On,Canada Member No.: 4,550 Region Association: Canada |
generally speaking the 12pin is carrying stuff to the engine. Ignition power, starter, tach, backup light switch... Lot of power going through there but mostly on the way to the engine. Supply for the board itself comes in at the top through the 14pin
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