Code P0302, Misfire I only get a misfire and EPC if I accelerate hard?

I only get a misfire and EPC if I accelerate hard and go past half throttle. If I say below half throttle the engine will continue to rev out till redline with no issues or hiccups. I have swapped the coils of cylinder 1 and 2 and it still shows up on 2. If I stay below half throttle everything is fine. A while ago I also got an intermittent misfire as well as a pedal position code. I've replaced the gas pedal and now it only throws a P0302. Carbon cleaning was done within 20,000 miles as well as air filter and spark plugs. No tune has been done.