[V8] Coolant temp sensor

[allanvega at comcast.net]

The replacements are white. Two pin 10/20/80 Celsius. 
----- Original Message ----- 
From: toml99 at todomundo.com 
To: "v8audi" <v8 at audifans.com> 
Sent: Monday, June 28, 2010 8:33:59 PM GMT -05:00 US/Canada Eastern 
Subject: [V8] Coolant temp sensor 

Hey all, well Alan's recent post about fuel consumption got me to do 
a little poking around on the 5-speed. I'd been wondering about the 
MAF sensor, as I just gave the key's away on that 87 Saab project, 
and had to swap a few to get it right. Anyway, the final test on 
the Audi says "increase engine speed briefly...voltage must increase 
to 3-5V"....what it should say is "increase engine speed 
briefly.....voltage will increase for a microsecond to 3-5V"......but 
sure enough, it passed the tests. 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 
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