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R32 Fuel Pump Earthing

J_R32

By J_R32,
in General Maintenance

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J_R32 Experienced

J_R32

Posted
Posted

Hey guys/gals

i am trying to re-earth my fuel and try to bypass the fuel pump modulator so that i can have the pump running at constant. (in an attemtp to try and fix my engine's problem of not really reving "fast"..its a bit sluggish)

i know quite a few people have done it on their r32's and would like advice at to WHICH(wat colour) is the earth wire for the fuel pump. I cut the black wire on the wiring plug connecting to the fuel pump, and it seems to just kill my fuel gauge that is it! i just want to know exactly which wire to cut (the earth wire) so that i can then wire in to a direct earth, not to the fuel pump modulator. by the way where is the fuel pump modulator located?

thanks for your help

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https://www.sau.com.au/forums/topic/118692-r32-fuel-pump-earthing/
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cowie165 Veteran

cowie165

Posted
Posted

Dude search for threads created by Boostmeister from a few years ago. There is a fairly huge thread about grounding issues with fuel pumps - should point you in the right direction. In a hurry otherwise I'd grab the link for you

J_R32 Experienced

J_R32

Posted
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Posted

the thread wasnt conclusive

hence why i posted

well i got the fuel gauge working again, rearthed, seems like maybe there is a backup ground for the fuel pump after. but still wouldnt mind a step by step guide on how to "disconnect" that fuel pump modulator

Craved Grand Master

Craved

Posted
Posted

there are 2 plugs there .. 1 with 2 wires, the other has 3

fuel pump has 2 wires going into its plug ..

fuel level has 3 .

earth on fuel pump would be the black one on that system.. all you would need to do it to solder on another wire that is earthed locally onto the existing earth wire.

  • 3 weeks later...

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