MkI coolant temp guage with 2 prong ABA sensor

[peter at thescirocco.com (Peter)]

You could fabricate a fitting, for the coolant temp sender, and mount it
inline with the heater hose, or to the coolant reservoir hose.
i.e. you would cut the heater hose, and install the fitting in-line.

I have to do something similar, if I want to keep CIS in Mars when I drop in
the 2L16V engine, but it will go on the lower radiator hose, and it's for
the temp sensor.

HTH!

Btw, the stock Scirocco oil temp sensor, can also be used for coolant, along
with the VDO gauge.

Peter

-----Original Message-----
From: C Boyko [mailto:roccit_53@xxxxxxxxxxxxxxxxxxxxxxx] 
Sent: Sunday, June 17, 2007 5:02 PM
To: scirocco-l@xxxxxxxxxxxx
Subject: MkI coolant temp guage with 2 prong ABA sensor

Yeah, so at some point my laptop won't be riding shotgun 24/7, so I'll lose
my coolant gauge on Megatune. This is in my '79, ABA head, with MSnS.
Anyway, the stock ABA coolant temp sensor is in the coolant manifold, and
just isn't working to send info to the stock cluster guage properly. The
stock sender was a one wire, and hooking up the ABA sender with one wire to
the gauge and the other to ground just pegs the gauge. How do I know what
the expected output is from the stock sender, and how do I adjust what's
coming from this ABA one? I don't think that the stock one could be easily
adapted, as it probably grounds in the manifold, and the ABA one is plastic,
not metal. I don't have an ABA Bentley to see how it's normally wired up.
Thanks!
Cathy


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