Camshaft Position (CMP) Sensor
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 Mitsubishi Montero Sport, 2002 Mitsubishi Montero, 2002 Mitsubishi Mirage, 2002 Mitsubishi Lancer, and 2002 Mitsubishi Galant. However, it is still accessible from the selected car via links, so may be relevant.
For CMP sensor testing procedure, see CAMSHAFT POSITION (CMP) SENSOR under SENSORS under ENGINE SENSORS & SWITCHES in SYSTEM & COMPONENT TESTING article.