[V8] Coolant temp sensor

[Tony and Lillie]

The car will actually run with a default program of 175 degrees if there is 
no signal from the CTS. So, yes, that would be a bit rich when the car is 
warm, and lean while it's warming up. I've rarely seen them in a color other 
than white, and that one would be the OEM for your car. Probably been 
replaced with an aftermarket one at some point in time.

It's the same one as most of the earlier (and a few later) Audi's, and I 
also have a chart for ohming it out if anyone wants more temp values. And, 
yes, it's a somewhat common thing to go, although these sensors seem to last 
about 15-20 years IME.

Tony


----- Original Message -----   Then I tested the Coolant temp
> sensor(on the rear of rt head) which was supposed to give 1.5-3ohms,
> and I got infinity....requirement was coolant to be approximatly 68
> degrees, and I got lucky as it was 64 today, and I'll call that
> approx.  My question, is most of the parts places show a sensor with
> a white body(mine's orange/looks old).  Autohaus say's call and check
> in with stock color first.  Anyone replaced this with one of the
> white ones/part #?  They're $20-30.  The "new" OX sensor that was in
> there when I bought the car was all sooted up, and the car ran better
> with a new one, but is still running a bit rich/sooty.....Love to see
> it be a $20-30 coolant sensor.....Sincerely Tom