I own a 2002 Mercury Sable and I'm getting a P0113 error. That indicates there is an issue with the Intake Air Temperature (IAT) sensor. However I can't locate one. I can find the Mass Air Flow (MAF) sensor and I'm wondering if someone can tell me the location of the IAT or confirm that it is integrated with the MAF. So far I can't find an IAT sensor on that motor.

Thanks!

 

I copied this from a website and the pics didn't transfer. Please follow the links to see the pics.

On models from 2000 through 2002 and later, the IAT is integrated in the MAF sensor, which is installed in the air intake duct and has a 6 wires connector. An example is shown below:

http://qcwo.com/technicaldomain/iat-...02-ford-taurus



On the 2-wire IAT, wiring is easy. You will identify the two wires by their color. One wire is [GRAY} and the other is [GRAY with RED].
On the other hand, the 6-wire IAT, there are 4 wires for the MAF, 1 wire for the IAT and one wire is common ground. The wire connecting to IAT is wire #6 and it is plain GREY in color.
If you are planning to do something like connecting an IAT resistor, you can:
1) disconnect the plain GREY wire (#6) from the MAF and connect it to one of the terminals of the resistor and then, the other terminal from the resistor can be connected to wire #3, which is the common ground.
IMPORTANT: When connecting one of the resistor terminals to wire #3, DO NOT disconnect it from the MAF. Disconnect from the MAF wire #6 (GREY) ONLY, which is the one that goes to the internal IAT on the MAF.
The circuit should be like the following:

http://qcwo.com/technicaldomain/iat-...02-ford-taurus



Resistance values versus temperature kept the same in all models from 1996 through 2002, and possibly the same on newer models, but at this time that has not been verified.
http://qcwo.com/technicaldomain/iat-...02-ford-taurus