Right, what I'm looking for is a measurement or three if anyone could be bothered, or more accurately, interested. 
& 
To follow on from gothbiker's thread about his FPR, my enquiry here is regarding the Intake Air Temperature (IAT) sensor's operating characteristics which is discussed briefly from post #14 onwards.
With a hint from Steptoe, I have managed to see my way through today's challenges and take some rudimentary measurements of the operating characteristic of my IAT, using a borrowed hairdryer ('cos I'll never need one again) and an air temp' thermometer, which is usually used for aircon and autoclave type measurements. Therefore the way I see it is: If the thermometer measures the hairdryer temperature when the probe is positioned in contact with the IAT, then so does the IAT from MBW (although I reckon my probe reacts faster that the GS). Also, this experiment is in no way definitive and it's conditions and variables have not been calibrated or standardised in any way whatsoever. If anyone wants to know what devices I used for this experiment then please post here and I'll reply to your enquiries, as long as it's sensible or funny.
Measurements:
Temperature (C) versus Resistance (ohms).
80 = 490
70 = 540
60 = 580
50 = 700
40 = 890
35 = 1000
30 = 1600
25 = 1600
20 = 2150
-15 = 5000 (done in the freezer)
This is not a particularly linear set, which I may have expected, although it may be compensated for by the ECU, and I don't know what is the correct curve should look like. I didn't do an Excel graph because life is too short.
If anyone has anything to offer regarding this, before I buy a new sensor and set up a lab, then please let me know what you find: Your ambient temp' resistance will be a start because from what I've seen with us lot there are only a few left who may need a hairdryer.
& To follow on from gothbiker's thread about his FPR, my enquiry here is regarding the Intake Air Temperature (IAT) sensor's operating characteristics which is discussed briefly from post #14 onwards.
With a hint from Steptoe, I have managed to see my way through today's challenges and take some rudimentary measurements of the operating characteristic of my IAT, using a borrowed hairdryer ('cos I'll never need one again) and an air temp' thermometer, which is usually used for aircon and autoclave type measurements. Therefore the way I see it is: If the thermometer measures the hairdryer temperature when the probe is positioned in contact with the IAT, then so does the IAT from MBW (although I reckon my probe reacts faster that the GS). Also, this experiment is in no way definitive and it's conditions and variables have not been calibrated or standardised in any way whatsoever. If anyone wants to know what devices I used for this experiment then please post here and I'll reply to your enquiries, as long as it's sensible or funny.
Measurements:
Temperature (C) versus Resistance (ohms).
80 = 490
70 = 540
60 = 580
50 = 700
40 = 890
35 = 1000
30 = 1600
25 = 1600
20 = 2150
-15 = 5000 (done in the freezer)
This is not a particularly linear set, which I may have expected, although it may be compensated for by the ECU, and I don't know what is the correct curve should look like. I didn't do an Excel graph because life is too short.
If anyone has anything to offer regarding this, before I buy a new sensor and set up a lab, then please let me know what you find: Your ambient temp' resistance will be a start because from what I've seen with us lot there are only a few left who may need a hairdryer.
