the values presented by the temp sensor - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• the values presented by the temp sensor by wdkingery on 21 Oct, 2012 17:34
• Anyone know about using the temp sensor on the motor?
  I'm interested in getting an idea of how cold the motor is when I fire it up, and again after sitting in the cold, by using the information the temp sensor provides.
  I assume the temp gauge is just a volt meter?
• #1 by 8v-of-fury on 21 Oct, 2012 18:24
• The sensors provide a resistance reading that the gauge then displays as a visual for you. I do not think they will give a reading for that low of a temperature.
• #2 by Wayland on 21 Oct, 2012 19:37
• What about using one of those cheap infrared thermometers?
• #3 by wdkingery on 21 Oct, 2012 19:43
• Lol well yes I do have one of those.. I was kinda thinking about just having a rolling temperature number
• #4 by ORCoaster on 21 Oct, 2012 19:47
• I have a couple of digital gauges on my WVO system that run off 12 vdc and give me accurate temps to the tenth of a degree between 32 and 100 degrees F.  Then good for single degree to 185.  Didn't cost much but the shipping and wait from China was a bit high and bit long.  How about a battery operated remote like you would use outside.  Just put it someplace far away from the exhaust temps.
  
• #5 by 745 turbogreasel on 21 Oct, 2012 21:37
• Most temp sensor are a logarithmic scale like this
  
  And the gauge oftenhas a circuit o provide a fat dead spot around normal operating temp.
  
  Your Bentley should have a few values or full char for your particular car and sensor.