What can cause a check engine light in a 2002 MPV with 3.0 engine?

A check engine light in a 2002 MPV with a 3.0 engine can be triggered by various issues, including a loose or damaged gas cap, faulty oxygen sensors, or issues with the catalytic converter. Other potential causes include problems with the ignition system, such as bad spark plugs or ignition coils, as well as issues with the fuel system, like a clogged fuel filter. It's advisable to use an OBD-II scanner to diagnose the specific error codes associated with the light for accurate troubleshooting.