[urq] temperature sender confusion

[Keith]

John
Is the gauge definitely coolant temp? I have the three gauge pod (in place 
of the diff lock switch panel) and the three gauges were volts, oil pressure 
and oil temperature - not coolant temp. The feed for this (oil temp) is from 
the sender that lies in the oil pump located behind the front belt pulley.

Regards
Keith

'87 WR (in wet and windy Worcestershire)


-----Original Message----- 
From: John Terreric
Sent: Wednesday, May 06, 2015 8:07 PM
To: urq at audifans.com
Subject: [urq] temperature sender confusion

Hello all,

this is my first post here, even though I have been enjoying reading you all 
for some time.

I have a 84 UrQ which has been well restored (engine new, suspension news, 
new paint) and an upgraded ECU (I suspect it was from a 4000 but I did not 
get any details).

Previous owners have also installed a classic 3 gauge VDO unit. 2 of the 3 
gauges work (oil pressure and battery) but not the coolant temperature. 
Again no assurance those senders are legit.

My mechanic is confused as there are already 3 temperature senders on the 
engine and one is connected to the gauge but it doesn't do anything to it. 
It would simply not budge at any temperature. But if he puts the lead to 
ground the gauge goes full scale - so there is a valid wiring and gauge 
functionality it seems.

So does it come from a wrong sender, i.e. with the wrong resistance? Or the 
right sender but the wrong gauge?

Thank you for your help in advance,

Eric
84 UrQ

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