Why does your check engine light come on after about 7 minutes of city driving on your 1994 Plymouth Sundance?

The check engine light on your 1994 Plymouth Sundance may come on after about 7 minutes of city driving due to several potential issues, such as a faulty oxygen sensor, problems with the catalytic converter, or issues with the engine's emissions system. City driving, with frequent stops and starts, can exacerbate existing problems that may not be as noticeable during highway driving. It's advisable to read the trouble codes using an OBD-I scanner to identify the specific issue triggering the light. Addressing the underlying problem promptly can help prevent further engine damage and ensure better vehicle performance.