Section 13 (Engine Controls - Sensor Operating Range Charts - EEC-IV (2.5L)): Introduction
WARNING: This page is about a different car, the 1995 Mercury Mystique and 1995 Ford Contour. However, it is still accessible from the selected car via links, so may be relevant.
Sensor operating range information can help determine if a sensor is out of calibration. An out-of-calibration sensor may not set a trouble code, but it may cause driveability problems.