Here is a problem that has been bugging me for a long time. I did all the obvious stuff (New plugs, New Wires, New Coils, Cleaned contacts) I still had these chronic misfires on Rotor one (Reading with Torque-android) I tried switching rotor one coils (later wires) to see if the problem followed a coil or wire. Then I pulled the plugs to see if swapping on of them was the problem but.... Before I did any swapping I saw that my plugs were black indicating too rich of a mixture of fuel to air. So I did some more digging and eventually discovered that two of the Selenoids were bad. One leaked, the other just didn't "click" all the time when you applied 12 volts. Swapping new ones for all three cured my problem.