S2/RS2 Fuel Pump Testing

**UrS4boy** · 3 September 2011, 16:36

Fuel Pump Testing, Replacement and Direct Relay Info

Originally posted by dobbin

what voltage should be at fuel pump? and from which cable is fuel pump relay, i thought it was thick brown cable but no voltage at all but have got 10.2 from small purple cable

Here is a link to some info regarding UrS fuel pump voltages and relaying the fuel pump directly to the battery (in this case, an UrS4 where the battery is under the rear seat):

quattroworld.com Forums: How to "Turbo Charge" your Fuel Pump: DIY instructions for adding a battery-to-fuel pump relay

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

The Audi Enthusiast website. Forums for all Audis including A4, S4, A5, S5, A6, S6, allroad, A8, S8, TT, R8, Q5, Q7, 4000, 100, 200, v6, v8, vintage, local forums

Here is a fuel pump testing post (for a C4 UrS but the idea and the quanities should be the same):

quattroworld.com Forums: G6 Fuel Pump Info

http://forums.quattroworld.com/s4s6/msgs/22623.phtml

The Audi Enthusiast website. Forums for all Audis including A4, S4, A5, S5, A6, S6, allroad, A8, S8, TT, R8, Q5, Q7, 4000, 100, 200, v6, v8, vintage, local forums

S2/RS2 Fuel Pump Testing

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