I am sure this question has probably been asked on here numerous times but I am new and don't really have time to trace back through past threads. Two weeks ago my wife's car started idling rough almost to the point of dying, threw codes 0303, 0304, and 0308. I think that is was they were misfires in 3, 4, and 8 cylinders so I changed the cops and plugs in those three cylinders. Codes disappeared but it continued to idle extremely rough and hard tick. Three days ago I took it for a drive to see if codes would return check engine light came back on and showed codes 0113, 0353, 0354, 0010 and 0020. Any suggestions on where to go from here. I also tried using carb cleaner to locate any vacuum leaks and none were apparent. Thanks in advance.