GM Open Element IAT Sensor Calibration Data.

Hello!

Does, anyone have the correct calibration tata for the GM IAT sensor? I'm guessing my sensor does not read correct air temperature because, no matter what I do with the air density correction table in my Megasquirt MS3PNP ecu, I'm having a very different idle AFR, for example I target a specific AFR and tune the idle for that at, let's say 35 degrees C, as soon as I go for a drive and the IAT drops to, 20 C for example, when I stop and let it idle, it's significantly richer, until the IAT rises again, to 40 C. As you guessed if it goes higher thhen it runs leaner.

I tried attaching a long hose to the intake and feed it cold air while idling then let the temperature rise slowly while adjusting the air density table, but, as soon as I go for a drive, then stop, the AFR goes bannanas.

I have disabled the MAT/CLT correction table, to have better control over the air density table.

The sensor is this one https://www.diyautotune.com/product/gm-open-element-iat-sensor/

I'm curently using the calibration data in the Megasquirt dropdown menu for GM IAT Sensor, I tried using the calibration data that is provided in the description on the website, because they're different, but I see no improvement.

Don't know what's wrong.

I went ahead and did a new test. I attached a open element K type probe to the iat sensor and blew hot air through the intake pipe. Despite the fact that the reading is way off (almost 20 C after it stabilized), the IAT is responding very slow. I guess that's my problem.

Can, anyone recommend a good, reliable, tested IAT sensor?