location is best near MAF
catalytic converter , sorryfor slang.
Catalytic converter - Wikipedia, the free encyclopedia
the closer the IAT can measure Incoming air temperture the better.
the ECU offsets its readings from it based on its factory stock location.
as you know the air gets warmer as it travels to the Intake valves.
this sensor (helps) fine tune the air fuel ratio.
I was asking this questions to see how far , mod's have evolved on the engine.
we get everything here from stock , to no exhaust pipes at all. dry headers barking in the wind.
Your ECU is trying hard to inform you of the error codes it has,
it has discovered gross errors ( this car,the ECU tests, are not strict).
some those errors can save a huge amount of time.
like TPS sig too low
or IAT too high
or Oxy sensor dead.