Dodge Dart engine light illuminated with unknown solution on Dodge Dart

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Dodge Dart owners report experiencing issues that trigger the engine light, indicating a need for attention. Common causes include a loose gas cap, which can easily be resolved by ensuring it is tightened properly. Additionally, some owners find that a faulty oxygen sensor affects fuel efficiency and may require replacement. Problems with the catalytic converter can also lead to the engine light illuminating, necessitating a mechanic's inspection and potential repairs. Furthermore, issues related to faulty spark plugs or ignition coils may arise, requiring these components to be replaced. Some owners report troubles with the mass airflow sensor, which can impact engine performance and may need cleaning or replacement. Weak batteries or alternator issues are also cited as causes for the engine light to come on, prompting checks of the battery and charging system. Lastly, a vacuum leak in the engine can trigger the light, leading to inspections of vacuum hoses and connections. It is recommended for owners to consult a qualified mechanic for diagnosis and resolution if the engine light is illuminated.

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