Re: [T3] Temp Sensors

["Keith Park" <topnotch@nycap.rr.com>]

<x-charset iso-8859-1>the top sensor should be around 300 ohms 25C and the head sens 3500 is OK,
just might run a bit rich when cold. So, if your reading right your top
sensor is bad and mimicking a hot condition, hard cold starting. the head
sensor can still open intermittantly and cut the engine out if thats your
symptom.

Keith


----- Original Message -----
From: <JSmith3@SARCOM.COM>
To: <type3@vwtype3.org>
Sent: Tuesday, November 06, 2001 8:20 AM
Subject: RE: [T3] Temp Sensors


> >>>>>>>>>>You can test it using the Bentley as a guide, or just put an
> Ohmmeter across it. What do you get when you do this?
> >>>>>>>>>>>>
> I tested both sensors and could not get a consistant reading, meaning
there
> was a slight variation with each reading, but not by much.  The head temp
> was incorrect cold, at approx. 3500ohms (X100 scale, disconnected, should
be
> 2500) and it was also incorrect connected with key on.  The top sensor was
> also reading incorrectly, but I tried so many times, now that I am writing
> this I forget the final reading, but it was not correct. I think it was
3.5-
> 5 ohms and it should be 1.5 to 2.5.
> And following the info at the D- jetronic site
> http://www.geocities.com/MotorCity/Shop/4123/StrtStop.html
> seems to indicate this is a possibility.  When the sensor is connected,
the
> engine starts then stalls immediately.
> ??????
>
>
> Jason T. Smith
> http://jasontsmith.tripod.com/vw.htm
> '72 Fastback AT FI
> '97 Jetta
>
>
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