What is a common issue that can trigger the emissions control light?

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The emissions control light, often referred to as the "check engine light," is designed to alert the driver to issues that may affect the vehicle's emissions system. A common issue that can trigger this light is problems with the catalytic converter. The catalytic converter is a crucial component of a vehicle's exhaust system, responsible for reducing harmful emissions by converting them into less harmful gases before they exit the vehicle.

When the catalytic converter is malfunctioning or failing, it can lead to an increase in emissions, which directly triggers the emissions control light. This is due to the vehicle's onboard diagnostic system detecting that the catalytic converter is not operating within expected parameters, thereby indicating a potential increase in pollution levels that the vehicle could emit.

The other options relate to different aspects of vehicle maintenance but do not directly impact the emissions control system in a way that would trigger the emissions control light. For example, low tire pressure affects fuel efficiency and tire wear but does not interact with the emissions system. Similarly, bad spark plugs can cause engine performance issues and misfires, but they are not the primary cause for the emissions control light. Worn-out wiper blades affect visibility and safety but do not relate to emissions control at all. Therefore, problems with the catalytic converter are the most

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