I need to locate IAT sensor four my 2009 ford

try this link

https://www.youtube.com/watch?v=NV8mNzIATxs

See if this helps -

94 ford ranger mass air sensor the iat sensor

Trying to "soup-up" your tiny little 4-banger by by-passing the IAT? My recommendations are DON'T DO IT! You are opening a can of worms that you may not be able to afford in the not-so-distant future.

However, who am I to tell you how to waste your money?

The IAT signal input to the PCM is Pin #1 VIOLET/GREY at the MAF/IAT sensor connector.

tyre pressure sensor is another gimmick and i would just ignore it and put a bit of black tape over the light .only the dealer can sort this out for you because as its a 2009 then its all encrypterd software on a europeon market vehicle

INTAKE AIR TEMPERATURE SENSOR (IAT) is normally located at the engine air filter housing for old models but i think yours its incorporated with the mass air flow unit (assembly). Thats the sensor after the air filter

The iat looks like the mass air flow its a hard plastic cylinder that connects to the intake tube after the air cleaner

sometimes the air temp sensor is in the mass air too.

Save your money, the chip is a ohm resistor at Radio Shack for under $2.00. It splices in to you IAT wire harness located at the intake tube between the air filter housing and throttle body.
Problem with this system is, that you can not adjust anything and have to run a constant 91 octane just to make sure you do not have a Detonation. The ECM will catch the Detonation from the knock sensor and compensate for it by retarding the timing which in turn lose of HP till next start up.
If you like and don't mind the check engine light on once and awhile, you can do the same by just disconnecting the IAT wire harness which give the ECM a 0 resistance thinking it's -20 out side and turn the timing up and lengths the injector pules.
When i was running a Nitro in the Toy before i sold it, i had installed a 10K ohm Potentiometer which you can buy at radio shack for under $5.00 i believe, I just spliced it in to the IAC wire harness so if i wanted to play with the Nitro I'ld turn the resistor up making the engine think it's 185 degrees F and would ****** the timing so i would not hurt the engine. But if i wanted to get more timing i would just turn the knob to drop the resistance to get more time since the engine thinks it's -20 out side.
Hope this helps. Keep me posted if you need more info. Best thing is to do a dyno tune and you can change everything right down to the Shift points.

The IAT sensor should be located in the air inlet tube to the throttlebody