Thursday, October 7, 2010

Temperature Sensor

Bosch Coolant Temperature Sensor (0 280 130 014)
Before Cleaning (obviously) Bosch 0280130014

After cleaning and polishing

You can even get it on Amazon, who knew...




Results from testing the sensor in a pot of water on the kitchen stove. Measurements started out in ice water and continued until the water boiled. Measurements from my sensor are the blue X's. The other data is from J. Tang's blog and includes his original and new sensors (much nicer than mine, he even shows the test setup, I was too lazy to clean the stove for a photo shoot, plus, you would laugh at how the multimeter and thermometer were set up.....) This data was collected with a food thermometer and a Fluke Multimeter, all data was collected in good faith and is believed to be accurate. This data comes with no warranty, expressed, or implied, and should not be used to diagnose any part of a motor (or any other means of propulsion) vehicle that might carry a person(s), pets, valuable artwork, or Tribbles. This data is for entertainment purposes only! Although the entertainment value in not warrantied. In fact, just don't look at the data.

Graph of the data from my sensor with the upper and lower limits interpolated from the Volvo Shop Manual, see below. It would seem that my sensor falls within the correct range and would seem to be OK. Yay! 


From the Volvo Service Manual or "Green Book"
My raw data..... Left column resistance in Ohms, right column is temperature in F.
4280 43
4310 42.8
4500 41.9
4590 37.4
4460 37.6
4440 38.3
4150 48
3700 52
3200 59
2990 61
2800 62
2808 61.3
2585 69
2330 73
2180 77
2028 80
1948 83
1820 85.5
1700 88.7
1600 90.7
1500 94.6
1431 95.2
1431 95
1432 95.2
1350 101.5
1200 107.1
1100 111.4
1000 116.6
900 122
800 128.3
700 135.7
600 144.5
500 155.3
400 167
350 175.6
300 185
270 192.2
250 196.3
240 200
220 204.3
210 207.5
203 207
200 208
197.4 208.2
199.5 209



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