Intake Air Temperature Sensor
WARNING: This page is about a different car, the 1992 Mercedes-Benz 400E. However, it is still accessible from the selected car via links, so may be relevant.
The intake air temperature sensor reads intake air temperature and converts temperature reading to a voltage signal. Intake air temperature sensor is a Negative Temperature Coefficient (NTC) type sensor. As sensor temperature increases, resistance decreases. The LH control unit uses intake air temperature to control fuel injection during warm-up enrichment. See Figure for location.