as far as fuel trims it should be as close to zero as possible.long and short term fuel trims very.it should be between -10 to +10.but you have a missfire so it will affect fuel trims.I would start by making sure you have spark on the affected cylinder.the pcm controls each ignition control module.seeing as you replaced the coil and plugs and wires the problem lies somewhere else in this system.looking at the diagnostic on the code,it could be a short to ground or pcm problem.not saying this is the wright fix but start here.this type of problem is a little hard to diagnose without seeing the vehicle and how its acting.post back with any other info or results and I can give you more of a better answer.