where is the iat sensor?

1990 lincoln town car - 5.0

Intake Air Temperature Sensor.....

I found one tech article here: http://www.lincolnsonline.com/tech/00193.html

Also:


The Intake Air Temperature (IAT) sensor determines the air temperature inside the intake manifold. Resistance changes in response to the ambient air temperature. The sensor has a negative temperature coefficient. As the temperature of the sensor rises the resistance across the sensor decreases. This provides a signal to the PCM indicating the temperature of the incoming air charge. This sensor helps the PCM to determine spark timing and air/fuel ratio. Information from this sensor is added to the pressure sensor information to calculate the air mass being sent to the cylinders. The IAT is a two-wire sensor, a 5-volt reference signal is sent to the sensor and the signal return is based upon the change in the measured resistance due to temperature.

Overview:
http://img143.imageshack.us/img143/1319/iat1lb9.jpg

Removal / Installation:
http://img256.imageshack.us/img256/3453/iat2hv5.jpg

Testing:
http://img99.imageshack.us/img99/4228/iat3uu9.jpg

http://img101.imageshack.us/img101/5231/iat4pv8.jpg

http://img527.imageshack.us/img527/1782/iat5zn0.jpg