Intake Air Temp Sensor Question

[LifterEyes]

Hey guys,

I tested the Intake Air Temperature sensor (Temperature Sensor I) today and measured about 1.06K Ohms when I measured the temperature outside of the air flow sensor case to be 32 degrees Celsius. The specs for this sensor say that it will have a resistance of 1.45K - 3.3K ohms with a temperature between 15 and 30 degrees Celsius. Does this sensor have a positive or negative temperature coefficient? That is to say should the sensor read 3.3K at 30 degrees or 1.45K at 30 degrees? In any case does a reading of 1.06K ohms sound like what this sensor should read at 32 degrees Celsius?

[HondaDustR]

I'm pretty sure it reduces resistance when it gets warmer, but I'm not dead positive on that. I know the DME water temp sensor does.

[LifterEyes]

Originally Posted by HondaDustR

I'm pretty sure it reduces resistance when it gets warmer, but I'm not dead positive on that. I know the DME water temp sensor does.

Thanks! This seems to be right, I had a chance to measure the sensor at a different temperature and it read 2.33K Ohms at 20ºC.