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Normal IAT Temperature.

jclui

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JC
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Supra 3.0 2023
Hi I am new on this, I have a supra 23 with a intake, catless with fabspeed O2 spacers, jb4 stage 2. The IAT temperature is above 135-140. I am driving switching between normal and sport mode, just accelerating hard sometime but not passing 50mph in 100 fareneheit ambient temperature. Jb4 shows 2 errors:

12B701 Lambda probe heating after catalytic converter, function: internal resistance too h

12AB04 Rear o2 sensor disconnected

Could you guys help me to know if the IAT temperature above 135-140 is normal and how to solve the errors?
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razorlab

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Seems normal for 100F ambient and WOT with a spoofy JB4 and oem intake manifold. Power is being pulled at that temp.
 

Wazza

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Nathan
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It's the spacers that are causing the fault codes not your IAT
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