What could be the reason for the check engine light in my 2009 Chevy Tahoe turning on?

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The reason behind the check engine light coming on in a 2009 Chevy Tahoe is often due to issues like a loose gas cap, malfunctioning o2 sensor, or a faulty catalytic converter. However, you might be curious about why a catalytic converter is considered crucial among various car components. Out of all the parts in a vehicle, the catalytic converter holds significant importance for several reasons. It plays a vital role in reducing harmful emissions that could pose threats to human health and the environment, converting 90% of detrimental pollutants into less harmful gases. If you ever need to replace the catalytic converter, be prepared for a costly repair. On average, the expense for repairing a catalytic converter in most vehicles ranges between $950 and $2480, covering both parts and labor costs.

What could be the reason for the check engine light in my 2009 Chevy Tahoe turning on?

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