Are you sure it is connected to the correct pins? One half of the sender
controls a glow plug relay, the other the gauge, IIRC. Each signal uses
a separate ground, i.e. the sender is grounded on two terminals. I used
this on my previous setup and was very accurate. If you don't have the
Bentley that covers the AAZ I have one and can do a pin lookup.

On 6/2/2015 11:16 AM, kenneth wilford (Van-Again) wrote:
> I bought the green temp sensor from an AAZ Jetta and now the gauge reads
> even more off.  It is pinning out all the way to the right within 5 mins
> of running.  I still have the yellow one which I might put back in.  The
> green one I bought is part number 357919501 is that the one you meant?
> Beside the temp gauge being wacky, the engine is running and driving
> well.  Just want a gauge that works before I drive it too far.  It makes
> me nervous not having a level sender and an accurate gauge.  I turn on
> the front and rear heaters just so I can feel the heat, I know that
> there is coolant in the engine.
>
> Ken

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