Intake Air Temp is ok for the Then pegs to 284F after 8 min of running

I'm just getting ready to start my tuning process, but I was reviewing my last log file and I noticed that my Intake Air temp is jumping from I would say normal 90F to over 200F plus. Then down again. I checked the MAF plug, and it looks ok. Is that value always a live log value or could I reach some set point that cause this to stop logging correctly? I'm not sure what would cause this...... Don't think I can really try and tune until I understand what is going on with that thing..

If you look at the 8:20 mark you will see it jump up then is high till the 8:23 mark and it drops down low. The Car stalls and I logged a little longer and the value stays around 120F

Can someone look at this log file and give me any suggestions?

Start with explaining what you are working on.

Try a different sensor.

Check wiring and try a new sensor.

I did have a bad PCM show up like this. Anytime it you floored the car the IAT would max out.

Wiring issue too the maf too as it's not showing any change

tell us what you have.
pictures work great also.

we cant just guess to your issue without having any clue what you have and or working on.........

This ended up being a broken wire in the harness. Cut the section out and resoldered it. Looks good now hope that was it..