Originally Posted by
foreigneRS
that's nonsense. it should be in the intake so that it measures intake air temperature. unless it has a huge thermal mass, the sensor will read the actual temperature of the air being ingested by the engine in that position (wether it has been heated above the AT or not).
As far as im aware it takes the IT reading before the run actually commences and uses that as a correction factor, it doesnt average it during the run, so it wouldnt be measuring the actual air going in, also I suspect the probe couldnt react that quickly anyway as they look fairly substantial to me and very fast acting probes have to be mega lightweight by definition.