Please help. 2013 V6 Accord. Misfire code p0301. Moved coils around, didn’t notice difference but changed coil 1 anyway. Changed all plugs. After 30 miles or so, car will sputter when trying to accelerate and rough idle. Will usually reset if I turn off ignition for a few minutes. Mechanic said he had computer relearn firing sequence and it wasn’t shutting down as before but still random misfires. So hechanged plugs again. After about 30 miles, same thing when trying to gun it. NKG plugs new and 2 new coil packs. wiring looks fine. I bought a new injector for cylinder 1 but he wasn’t convinced that was the issue.