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Code P0301 Cylinder 1 Misfire

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Hello All,


I am new to this forum and am seeking your help to diagnose this P0301 code. I drive a 2007 Ford Edge and a few weeks ago my wife put E15 into the car accidentally. This in turn lead to my O2 Sensors reading lean in bank on and the P0301 code. I replaced the O2 sensors for bank 1 which got rid of the bank 1 lean code but the P0301 code continues to plague me. I changed the spark plug but still no change. My next step is changing the coil and the fuel injector, but I wanted to run this by you guys to see if there is anything I may be over looking. Any help would be greatly appreciated!!! 





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