Air Flow Sensor Potentiometer Question

[higher planes]

Hi guys- just a few questions - M103 engine -

Should an air flow sensor test be performed on a cold or warm engine?

For starters, I performed this test on a cold engine, and I got the following results: when I measure resistance between pins 1 and 2, I show a reading of 1.02 ohm. Do I have a bad potentiometer? Or is this reading due to testing on a cold engine?

I've been told that the reading should be closer to 3.6 to 4.4. But again, I don't know if this is on a warm or cold engine or if it makes no difference at all. Thanks!