Where is the throttle position sensor on a 1999 mercury tracer with 2.0?

On a 1999 Mercury Tracer with a 2.0-liter engine, the throttle position sensor (TPS) is located on the throttle body. It is typically mounted on the side of the throttle body, where it can monitor the position of the throttle plate. To access it, you may need to remove any obstructing components, such as the air intake duct. Always ensure the engine is off and cool before attempting any work on the sensor.