Possessed IAT sensor

[Tricked-Out-Toy]

Guys, Im loosing my mind. see the attached log iat issue.hpl I have a LS7 Z06 H/C Car that has an IAT sensor that if the cars cold will read close to ambient but after it starts to warm up the IAT temps drop and continue to drop till you are way below 0... Ive traced the wiring back to the PCM and its good, Ive replaced the sensor with a new one and a known good one from another car... Im at a loss....

[Ben Charles]

Check the iat values in the tune... Maybe someone altered them backwards

[schpenxel]

I bet someone copied in values for a different sensor but didn't change the headers (which should have been going the other direction...)

[Tricked-Out-Toy]

I bet someone copied in values for a different sensor but didn't change the headers (which should have been going the other direction...)

Heres the tune? Modified 2-19-16 remove miss fire code.hpt

[schpenxel]

Heres the tune? Modified 2-19-16 remove miss fire code.hpt

What mods? Someone has totally messed up the IAT tables.

Is it running the stock MAF/IAT or what exactly? I can give you the right tables to use but need to know what hardware it is using

[Tricked-Out-Toy]

What mods? Someone has totally messed up the IAT tables.

Is it running the stock MAF/IAT or what exactly? I can give you the right tables to use but need to know what hardware it is using

ITS A H/C car stock intake and iat/maf.

[schpenxel]

Simplest thing you can do is pull a stock 2007 C6 file from the repository and change the IAT and IAT 2 tables back to stock. Make sure you change the axis/headers as well if they are changed.

Here is a stock 2007 LS7 file and also some screenshots of what they did..

Stock tune you can copy the IAT tables out of:
ORIGINAL 2007 C6, LS7 TUNE.hpt


Stock IAT1
Stock.PNG

Yours IAT1
Yours.PNG

Stock IAT2
Stock 2.PNG

Your IAT2
Your IAT2.PNG

[Tricked-Out-Toy]

Wow! I see the mess up now! Thanks!