I have a skip in #s 1,3,6 cylinders. It was intermintent at first but not now.

What is your question?

The codes are p0300,301,303,306. The front 02 sensors when unpluged read 451 but when pluged in they drop to 0. The long and short term fuel trims are at 0 also. At first I thought that the coil packs might be bad but when I saw the fuel issues I was wondering if the fuel could be causing the problem. I also thought that if it was fuel it would be skipping on all cylinders. At first it only seem to happen on wet days but now it is skipping all the time. Any help would be great!