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Hey guys had a bad downstream o2 sensor for a month now, recently replaced it and was quick and easy thank god but i now see this new check engine light telling me the Exhaust Gas Recirculation System Malfunction(P2413) going to try cleaning it then running it again for a few miles. While cleaning it i noticed that the valve is kinda tight when opening with my 5 star screw drive, so put some carb cleaner in it and have it sitting for a bit, will up date next day.