Question on the fuel pump relay.

Ti Kan ti at
Mon Dec 2 21:45:27 EST 2002

Tigran Varosyan writes:
> Question: Does the relay send variable voltage to the pump? Meaning, does it
> sometimes open it up full bore (12V) and sometimes run it at a slower speed
> (less than 12V) depending on engine demands?

No.  It's always full voltage to the pump when 'on'.

2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
    ///  Ti Kan                Vorsprung durch Technik
   ///   AMB Laboratories, Sunnyvale, CA. USA
  ///    ti at

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