Hello! Welcome to the site! Thanks for coming! I'm Ron Z. I'm here to provide as much info and insight as I can, to best answer your question.
There are a few different things hat can set a single-cylinder misfire. On this engine, a very common fail item is the Ignition Coil
or the Spark Plug
, so this is probably the best place to start. On this vehicle, cylinder #6 is on the driver's side, closest to the windshield. Carefully inspect the electrical connector to the Coil for any loose, broken or damaged wires. Remove the coil and remove the spark plug. Inspect the plug for any cracks or signs of a worn diode. If there are any doubts about the plug and replacement is needed, all the plugs should be replaced at the same time. If the plug looks ok, you can swap the coil with another one. If the code changes, and the misfire switches cylinders, the coil is the culprit and will need to be replaced.
If the plug and coil check good, the next items to look into will be the Fuel Injector, air intake leaks around cylinder #6 and ultimately, cylinder compression. On these engines, these are not as common, so starting with the plug and coil will very likely solve the problem.