2007 honda pilot J35Z1
Recently changed out my valve cover gaskets, spark plugs and oil change on my 07 pilot. When I cranked it back up I got codes p0302, p0161, p2251, and cylinders 1,2, and 3 were not firing and had smoke coming from the catalytic converter. I swapped coils around to see if any were bad and they all work when on the front bank but none work on the rear bank. I took it to the dealer and they said I needed the pcm replaced and o2 sensors b1s1 and b2s2. I had them replace the pcm and replaced the sensors myself to save $1100 of labor that they wanted to charge. Im still receiving the p0302 code and still misfiring on the rear bank. Has anyone ever encountered this problem and if so how was it fixed if it ever did get fixed?