If you own a air compressor and an ohm meter it should not be to hard to
check the calibration of the senders. Make an adapter and hook it up th
the air supply. Start with zero psi and slowly bring it up while
monitoring the output with the meter.
Drive Safely & Good Luck
Ken Lewis<Kernersville,NC>

On Sat, 27 Jun 1998 08:34:14 EDT Patrick Foltz <Pfunky@AOL.COM> writes:
>Ken Wilford and I were discussing the use of pressure and temp guages
>taken
>from junkyard audi 4000's and are in question about the pressure
>sender.  Is
>the light/guage sender on the filter housing for the high side (ie,
>OPENS at
>the twentywhatever psi) or for the low side (closes at 4or6or8 psi)?
>The car
>I'm getting my guages from has the two senders (One on the back of the
>head in
>addition to the sender on the filter)  Does anyone know this answer,
>or happen
>to have  bentley for the audi  (actually any vw with the dynamic
>system) and
>can tell us positive, so I can run over to the yard, get the guage and
>let it
>sit on my toolbox for six months while I try to find the time to
>install it!
>Thanks, Patrick
>

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