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put scan tool on and displayed codes listed below. replaced crank position sensor, checked plugs and wires, cleared codes and still runs rough and resets same codes
Vehicle: 2003 ford f 150 with 4.2 v6

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P0316 Misfire at start up

P0302 Misfire number 2 cylinder

P0316 Misfire number 6 cylinder

Number 2 and 6 are companion cylinders, if the cylinder 2 and 6 are mechanical good the ignition coil is more than likely the issue.

​ Here you can see the firing order arrangement, 2 and 6 are on the coil pack these are compainion to each other

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