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I have a 2004 Chevrolet Tahoe the error code p0430, engine light on. Besides changing the catalytic converter what can I do?

Vehicle: 2004 Chevrolet Tahoe

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In some cases the rear O2 sensor can cause this code to come up. Most common you have to replace the converter, however if you have a scan tool that shows live data you can watch the rear O2 on bank 2 and determine which is the cause.
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P0430 CHEVROLET - Catalyst System Low Efficiency Bank 2

Read more: https://www.autocodes.com/p0430_chevrolet.html

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