== == Check under the hood at night or in a dark garage for spark arc. Mine would arc or ark from the spark plug wire to the coil on the passenger side of the motor. Spray with WD 40 or silicone to stop the ark then replace the coil and or wires. About $60 for the coil and 50 for wire set. You only get three wires in the set. You don't need the ones on the one side as they are built with the coil.
It could be a bad coil pack (black thing above 3 of your spark plugs) I had one go bad and it caused a miss in the engine.