Fuel Pump Wiring Upgrade

[sjw185]

When I did the mod I measured across the original pump wiring at idle which was 13.4v
measured at the battery on idle 14.2v

First I cut the supply cables at the pump plug and extended back to under the seat for the relay switching pos and neg.
Then I run a 6mm cable to the pump from the battery through the relay and inline fuse.
I earthed the pump to a local earth point using 6mm
final test after mod was 14volts at the pump

Just remember to get the polarity right as I had the pump blowing instead of sooking
Was thinking like a sparky brown is live in my book

[macspring]

http://www.034motorsport.com/chassis...t-p-18927.html

Just for anyone with a urS4/S6 that is not good at wiring.

[4WheelDrifter]

I'm doing this to my S2, after seeing a graph for the 10 bar 044 somewhere, voltage vs flow.

I was wondering if it was safe to use any old cable in the tank? The original stuff is stiffer than normal cable, or is that because it has been immersed in fuel for most of its life?

[S2central.net]

6mm2 cable is way overkill.

And yes I remember the faux pas with brown wire

Green / yellow is live
Brown is earth 0V

[newsh]

This mod made a massive difference on my UR

[S2central.net]

There is really skimpy cable to fuel pump on some UR machines

[Jonas_R]

I used the 034ms wiring kit for my coupe and it works just fine. There where enough wise to install the relay nicely.

[UrS4boy]

Hi all, just wondering if there was a how to on this? I'm sure I could work it out pretty quickly; just wanting to get the parts up together. I guess I'll need a standard relay with spade connectors to suit and some wire to run from the battery to the relay and relay to fuel pump, as well as an earthing lead for the fuel pump feed from the wiring harness. Anything else?

Sorry, I didn't stop by the S2 Forum yesterday. If I had, I would have given you then link to this fuel pump relay DIY:

http://forums.quattroworld.com/s4s6/msgs/24327.phtml

034's kit *probably* is based on this DIY.