factory vdo gauge problem

[Brandon Rogers]

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Hi all-
 I've sent this to multiple lists, so please excuse if you get 3 copies.  A=
nyway--here's my situation (I'll _try_ to be brief)

I want to use the vdo oil temp gauge from a CQ 20V as it has the same temp =
range (170/180C) as the sender in my 3B motor, and it will fit in my 3 gaug=
e pod (like on a CQ 20V).  Aftermarket VDO/Autometer oil temp guages are 15=
0C, so they won't work properly.  When I hook up the Ground and Positive wi=
res (_without_ the actual signal wire from sender attached) to the gauge fr=
om the CQ, it just pegs at full 170C.  Doesn't matter which pole the + goes=
 to when the Ground is hooked up -  the gauge pegs.  The wires properly act=
ivate my VDO Vision gauges (they're just the wrong temp range).  I've tried=
 2 separate used oil temp gauges froma CQ--same result.  Now, the CQ 3 gaug=
e pod wiring harness includes a relay behind the ashtray--maybe this is the=
 culprit.

Can anybody shed some light on this situation?

Thanks-

Brandon
'84 urq 20V
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