Fuel pump wiring in a 6 conversion - non relay board, Is a relay needed? |
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Fuel pump wiring in a 6 conversion - non relay board, Is a relay needed? |
nditiz1 |
Sep 8 2021, 01:12 PM
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#1
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Senior Member Group: Members Posts: 1,202 Joined: 26-May 15 From: Mount Airy, Maryland Member No.: 18,763 Region Association: MidAtlantic Region |
So I'm not using a relay board in my 6 conversion. I have cut the 14 point harness where it branches to the trunk, so maybe just 2 ft off the end. I left the starter wire the full length. In hindsight I should have left the tach and idiot light wires just as long, but it's OK, enough to butt splice. Anyway, there are 2 red wires(switched 12 volts) I was planning on 1 for the ECU and have the other kick on the fuel pump. Is there any reason I need to run a relay for the fuel pump?
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Dustin |
Sep 8 2021, 02:43 PM
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#2
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Member Group: Members Posts: 111 Joined: 19-August 10 From: Woodland Hills, CA Member No.: 12,072 Region Association: None |
The relay is there to prevent the current that the fuel pump draws from going through the ignition circuit. Porsche/VW is telling you in their design that you don't want that current there. Turning the relay on doesn't use very much current.
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