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This code means the engine is taking too long to warm up which can be caused by a failing thermostat or coolant temp sensor, the thermostat is the most common of the two. I would recommend replacing thermostat with a OEM part. This would be around a $300-$400 job at a shop depending on where you go. Let me know if you have more questions or if there is anything else I can do to help. Thanks.
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