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P0402 code is set on a 2003 Chevrolet S10 Blazer. Would a bad Cat. Conv. cause this?

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P0402 code is set on a 2003 Chevrolet S10 Blazer 4.3L. Would a bad Catalytic Converter cause this?

Vehicle: 2003 Chevrolet S10 Blazer 4.3L

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It's possible but not likely.

P0402 CHEVROLET - Exhaust Gas Recirculation Flow Excessive Detected
Read more: https://www.autocodes.com/p0402_chevrolet.html

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