Hi. I have a 2014 Durango 3.6L. Recently I have started getting the P0304 code. I have changed the coil and plug on that cylinder and still get the code and rough idle. I have a feeling I may have gotten bad gas and have been running E85 since the issue start. I also put in Chevron fuel injector cleaner, on top of a full tank of gas, I know, should have been empty. I was going to try Lucas fuel injector cleaner once my tank got lower. I had the plugs replaced at the dealership almost 30K miles ago. The vehicle has 120K miles on it. Any other recommendations.
What makes this problem better or worse?
Sitting at a stop light seems to be worse. No noticable misfire at speed.
How long has your 2014 Dodge Durango had this problem?
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