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If you just cleaned the EGR and replaced it, you can turn off the Check Engine Light (CEL) by disconnecting the negative battery cable for a couple of minutes. The engine may run rough for a few miles until it "re-learns". If the CEL comes back on, take the vehicle to AutoZone for a free scan. If the code still indicates a faulty EGR, it may have to be replaced.

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Q: What is causing the check engine light to stay on the egr valve is clean and carbon free?
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