Cherokee 2WD L4-150 2.5L VIN P MFI (1991)
Charge Temperature Sensor: Description and Operation
Intake Air Temperature (IAT) Sensor
The Manifold Air Temperature (MAT) sensor is mounted in the intake manifold, and the sensor element extends into the manifold airstream to measure
the temperature of the air passing through the intake manifold. As the temperature changes, the resistance of the sensor changes. The engine controller
reads the resistance changes and uses this information to calculate the proper air/fuel ratio for different engine operating conditions.
