hi, ihave a misfire on # 3 cyl. I have swapped coils and replaced plugs and wires.I have also compression tested.my # 3 injector stops clicking after about a minute of the car running. I put my timing light on the # 3 wire and it is slow and stops flashing every few seconds. any other wire i try acts normal.I went into alldata and it says that when a cylinder detects a misfire it will shut down that injector to protect the cat. I wonder if it might be a crank or cam sensor,computer or something else. Hope someone can help Thanks