Date:         Sun, 8 Apr 2001 21:13:49 +1000
Reply-To:     One Morecar <onemorecar@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         One Morecar <onemorecar@HOTMAIL.COM>
Subject:      Re: Oil Temp Sender Ohms
Comments: To: jbrush@AROS.NET
Content-Type: text/plain; format=flowed

Hi John,
I reckon you've got an earth (to frame) along that sensor wire somewhere. I
had the same thing when the insulation rubbed off my sensor wire. Take the
wire off the sender and the gauge needle should be all the way back to the
left, then earth the end of the sensor wire and the needle should be full
scale. If its full scale with the wire off, take the other end off the gauge
and see what happens.
Geoff
Perth WA
Australia
82 camper


>From: John Brush <jbrush@AROS.NET>
>Reply-To: jbrush@AROS.NET
>To: vanagon@GERRY.VANAGON.COM
>Subject: Oil Temp Sender Ohms
>Date: Sat, 7 Apr 2001 13:31:44 -0600
>
>I am having a problem with my VDO oil temp sensor and since its saturday,
>there is no one at VDO to contact, so I thought I might see if anyone here
>has ever actually measured the resistance of the sensor, as mine seems to
>be out of whack.
>
>I wired up the whole deal from the engine to the dashboard (yikes, that
>was fun) and connected it all up. The VDO gauge makes a slight move as I
>turn on the key, and then in a matter of a minute, it pegs off the scale.
>
>Measuring the resistance sensor to ground shows 850 ohms, and dropping, as
>the oil cooled. (this is at both the sensor, and the dashboard end of the
>wire)  It was only running for a few minutes. The gauge is stamped with
>322.8-18.6 ohm  @ 12V, so I am guessing the sensor has a problem.
>
>The sensor is in the oil drain plug hole, and I did not use any goop or
>sealer on the threads. I was gonna pull the sensor and check, but I think
>I will wait rather than dump the fresh oil , and see what VDO and the
>vanagon experts say <g>
>
>Anyway, I just know that some of you folks are pretty well versed and
>meticulous in your vanagon knowledge, so I thought I might ask what you
>think, being a weekend and all. :)
>
>Thanks for all your help,
>
>Regards from Utah,
>
>John

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